A student finds that the mass of 25mL of an unknown liquid is 20.5g. What is the density of this substance?

Answers

Answer 1

Answer:

Density, [tex]d=0.82\ g/cm^3[/tex]

Explanation:

It is given that,

Mass of unknown liquid is 20.5 kg

Volume, V = 25 mL

We know that, 1 mL = 1 cm³

25 mL = 25 cm³

The density of the substance is equal to its mass per unit volume. So,

[tex]d=\dfrac{m}{V}\\\\d=\dfrac{20.5\ g}{25\ cm^3}\\\\d=0.82\ g/cm^3[/tex]

So, the density of this substance is [tex]0.82\ g/cm^3[/tex].

Answer 2

Answer:

0.82

Explanation:

just took test


Related Questions

John and Joshua used a light microscope to observe a plant cell. They indicated the magnification as x1000. Given the eye piece lens magnification x10. Work out the objective lens magnification.

Answers

Answer:

Objective Lens Magnification = ×100

Explanation:

In a microscope, the ocular (eyepiece) lenses are usually to a magnification of ×10, meaning that it magnifies the image 10 times. While the standard objective lenses have magnifications of ×4, ×10, ×40, and ×100.

In order to work out the total magnification, the individual magnifications of the ocular and objective lenses have to be known, after which a simple multiplication of both magnifications will give the total magnification used.

Total Magnification = (eyepiece lens magnification) × (objective lens magnification)

1000 = 10 × obejcetive lens magnification

Dividing both sides by 10

Objective lens magnification = 1000 ÷ 10 = 10

∴ Objective lens magnification = ×100

Scientists are able to reproduce certain plants and animals by cloning them in laboratories. The diagram shows the steps of cloning using tissue cultures. Do you think cloning is a form of asexual reproduction? Explain your answer using evidence from the diagram

Answers

Answer:

Yes.

Explanation:

Yes, cloning is a form of asexual reproduction because there is no fusion of sperm and eggs takes place. the animal which is formed from this process is identical of that organism because it is produced from the tissue of that single animal. in 1996, first mammal is produced from cloning was sheep named dolly at the Roslin Institute in Scotland. In cloning, the egg is taken from female organism and remove the nucleus from the egg then the desired organism cell is taken and fuse with the nucleus with the help of electricity. Then implant this embryo in the body of first organism from where egg is taken and after that the embryo turns into a baby, this process is called cloning.

Answer:

Yes, cloning is a form of asexual reproduction. The diagram shows that new plants form from a single parent plant, which means that the offspring are genetically identical to the parent.

Explanation:

Edmentum

Define:
(i) parasitism,
(iii) photosynthetic nutrition​

Answers

Answer:

hey there !!!!

According to google your answer's are as follows

I} Parasitism means the relationship between two species of plants or animals in which one benefits at the expense of the other, sometimes without killing the host organism.

II} Photosynthesis is a biological process utilized by all green plants to synthesize their own nutrients. The process of photosynthesis requires solar energy, water and carbon dioxide.

HOPE U GOT ITPLZ MARK ME AS BRAINIEST IF IT HELPS !!!!!!!

Consultar los tipos de biotecnología según sus aplicaciones. Dar ejemplos

Answers

Answer:

¿Qué aplicaciones tiene la biotecnologia actualmente?

Ejemplos de biotecnología

Antibióticos.

Cultivos de bacterias y levaduras.

Leche descremada, fortificada o larga vida.

Aportes a la lucha contra el cáncer.

Producción de biocombustibles.

Plantas transgénicas.

Plásticos biodegradables.

Vacunas.

Which label in the graphic represents the energy that is released from glucose by cellular respiration?
Oxygen
Glucose
Energy stored as ATP
Carbon dioxide and water

Answers

Answer:

C) Energy stored as ATP

Explanation:

100% on edge

Over the next century, how do you think the effects of global climate change will compare for species adapted to extreme heat (tropical and hot desert species) versus those adapted to extreme cold (polar species)

Answers

Answer:

If we do not reduce our carbon emissions and instead allow global temperatures to rise by 4.5˚C, up to half the animals and plants in some of the world’s most biodiverse areas could go extinct by 2100, according to a new study. In fact, even if we are able to limit global warming to the Paris climate agreement goal of 2˚ C, areas such as the Amazon and the Galapagos could still lose one quarter of their species, say the researchers, who studied the effects of climate change on 80,000 plants and animals in 35 areas. Another study found that local extinctions (when a species goes extinct in a particular area, but still exists elsewhere) are already occurring in 47 percent of the 976 species studied, in every kind of habitat and climatic zone.

With temperatures rising, precipitation patterns changing, and the weather getting less predictable and more extreme, a 2016 study determined that climate change is already significantly disrupting organisms and ecosystems on land and in water. Animals are not only shifting their range and altering the timing of key life stages— they are also exhibiting differences in their sex ratios, tolerance to heat, and in their bodies. Some of these changes may help a species adapt, while others could speed its demise.

Move, Adapt or Die

Animals can react to climate change in only three ways: They can move, adapt or die.

According to climate change If carbon emission can't reduced and instead allow global temperatures to rise by 4.5˚C, up to half the animals and plants in some of the world’s most biodiverse areas could go extinct by 2100.

What are the effects of climate change?

Climate change refers to long-term shifts in temperatures and weather patterns. These shifts may be natural, but since the 1800s, human activities have been the main driver of climate change, primarily due to the burning of fossil fuels (like coal, oil, and gas) which produces heat-trapping gases.

More frequent and intense drought, storms, heat waves, rising sea levels, melting glaciers and warming oceans can directly harm animals, destroy the places they live, and wreak havoc on people's livelihoods and communities.

The potential future effects of global climate change include more frequent wildfires, longer periods of drought in some regions, and an increase in the duration and intensity of tropical storms.

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Which is a difference between a compound light microscope and a scanning electron microscope?

Answers

The scanning electron microscope can view the internal part of a cell, while the compound light microscope views the surface of a cell. ... The scanning electron microscope uses an electron beam and a layer of gold to view the surface of the cell, while the compound light microscope uses light and lenses.

Answer:

the answer is D not what other dude said

Explanation:


What was the experimental variable we tested in the lodine Clock Reaction?

Answers

Answer:Experiment 1084-04: lodine Clock Reaction Purpose Determine the rate law for an iodine clock reaction and study the influence of st on that reaction abruptly that it can be as startling as the sudden sound of an alarm clock, hence the clock reaction Background Information chemical equations can be written for chemical reactions, only some will proceed while others do not. Among the ones that do proceed some reactions occur as soon as reactants are mixed, while others occur over minutes, hours, or n over several years. What are the controlling in predicting if a reaction will take place and the speed at which it will? Thermodynamics can answer the question, "Will the reaction take place?" Once the reaction is capable of proceeding kinetics can answer the other question, "How fast You will study the rate of the reduction of potassium persulfate, KoS Os, with sodium iodide, Nal. The net ionic equation for the reaction is eve The rate law for this reaction is in the form of And you will need to determine the reaction orders a and b, as well as the rate constant, k. Keep in mind that exponents can not be determined by jus looking at the chemical equation the reaction will take place? The rate of a reaction is defined as the increase in molar concentration of product of a reaction per unit time or the decrease in molar concentration of reectant per unit time. The usual unit for the rate is moles per liter per sec (mol/L s or M/s). Experimentally, it has been found that a reaction rate depends on the concentrations of the reactants. Usually a higher reactant concentration increases chance of collision among the reactants per unit time causing a faster reaction rate. An equation describing the relationship between the reaction rate and the concentration of the reactants You will need a way to determine how much of the reactants were spent over the given time period. Preferably, the concentrations of the reactants should not change too much; therefore the reaction rate can be represented by the initial concentrations of reactants (the initial-rate method). In this experiment, we will couple another reaction that consumes the product, 12 very quickly. The new reaction is the reduction of is called a rate law. For the elementary reaction Note that l2, which was produced in reaction (1) is consumed as fast as it is produced by reaction (2) to regenerate two l. i.e. [门is kept constant. By keeping [S203-9 much smaller than the initial concentration of S,0, we can assure [S20,1 is also kept nearly constant when S203 is completely consumed. At this point, the 12 is no longer eliminated by the reaction and starts to accumulate. This point is signaled by sudden appearance of the dark color from the interaction of l2 with starch indicator. We can measure the time elapsed till the color appears Rate k [AIB] The proportionality constant, k, is called the ate constant in the relationship between the rate nd concentrations. The rate constant has a fixed alue as long as the reaction temperature is held nstant. The exponents, a and b, are called the action order, and are frequently, but not always, egers. More importantly, they must be termined experimentally In this experiment you will determine the rate an iodine clock reaction, and study the effects of perature and a catalyst to the reaction rate ugh there are several versions of an iodine k reaction, all of them share a common feature: completion of the reaction is signaled by the en appearance of a dark purple color. This is characteristic of the interaction between cular iodine and starch. When the reaction is ed out correctly, this color will appear so According to the reaction stoichiometries of reactions (1) and (2), two molecules of S203 are required to counteract the consumption of one molecule of S20a2. Since S2032 would have been completely consumed when the dark purple color appeared, the Δ[SO ] should be % of the initial concentration of S203 15-08-2] = ½ initial [S,03-21

why do we drink water??​

Answers

Answer:

You need water to digest your food and get rid of waste. Water is needed for digestive juices, urine (pee), and poop. And you can bet that water is the main ingredient in perspiration, also called sweat. Besides being an important part of the fluids in your body, water is needed by each cell to work.

Explanation:

I'm not sure but hope it helps

Answer:

beacuse we gona healthy drink many water bro

What features do plant cells have in common with animal cells?

Answers

Answer:

they both are cells boom

Explanation:

they kinda different do

Which type of energy do you think is better: SOLAR ENERGY or WIND ENERGY?why do you think that ?

Answers

Answer: solar energy is better.

Explanation:

I need help dose anyone know

Answers

Option CAnthracite is the answer

what is force? pls answer my question ​

Answers

Answer:

Strength or strength, which is an ability of the human physical condition that is needed in increasing the achievement of learning motion. ... Harsono (1988: 47) defines strength as energy to fight a resistance or the ability to generate tension

Explanation:

sorry if wrong (◠‿◕)

The image shows a food web in an Arctic ecosystem. Rising temperatures in the Arctic Ocean can lead to large die-offs of phytoplankton, which are autotrophs. What would most likely happen in an Arctic ecosystem if the phytoplankton population decreased?

Answers

Answer:

as the population of phytoplankton decreases, the amount of food for zooplancktons decreases

If the number of cigarettes smoked increases, then the risk for lung cancer increases. Independent variable: _______ Dependent variable: _______ If the number of sharks swimming in a coastal region increases, then the number of shark attacks on humans will also increase. Independent variable: _______ Dependent variable: _______ If the amount of milk a person drinks increases, the strength of his or her bones will stay the same. Independent variable: _______ Dependent variable: _______

Answers

Complete Question:

Part A: Identifying Variables

Read the following hypotheses and identify the variables.

If the number of cigarettes smoked increases, then the risk for lung cancer increases.

Independent variable: _______

Dependent variable: _______

If the number of sharks swimming in a coastal region increases, then the number of shark attacks on humans will also increase.

Independent variable: _______

Dependent variable: _______

If the amount of milk a person drinks increases, the strength of his or her bones will stay the same.

Independent variable: _______

Dependent variable: _______

Answer/Explanation:

Dependent variables are variables that is dependent on the independent variables. That is, it is the variable that changes as the independent variable changes.

Depedent variable is the main interest if a researcher. It is the variable that is measured in a research work.

In the above given hypotheses, the dependent and independent variables are shown below:

1. "risk for lung cancer" is dependent on the "number of cigarettes smoked".

"Risk for lung cancer" => dependent variable

Number of cigarettes => independent variable

2. "number of shark attacks on humans" is dependent on "number of sharks swimming".

Dependent variable => number of shark attacks on humans

Independent variable => number of sharks swimming

3. Dependent variable => strength of bone

Independent variable => amount of milk a person drinks

Answer:

Lab: Heart Rate  

Part A: Identifying Variables

The dependent variable happens as a result of values/changes associated with the independent variable.

Independent variable: number of cigarettes smoked

Dependent variable: risk for lung cancer

Independent variable: number of sharks swimming in a coastal region

Dependent variable: number of shark attacks on humans

Independent variable: amount of milk a person drinks

Dependent variable: the strength of his or her bones

Part B: Heart Rate

Hypothesis: If I hold my breath for 30 seconds, then my heart rate will

(choose 1) increase/decrease.

Independent variable: holding my breath

Dependent variable: heart rate

Part C:

The heart rate decreases because oxygen exchange in the lungs decreases.

This depends on what you chose for heart rate in the hypothesis. If you said the heart rate decreases after holding your breath, and the results showed the heart rate decreased, then the hypothesis is supported. If you said the heart rate decreases after holding your breath, and the results showed the heart rate increased, then you refuted the hypothesis.

Heart rate can change due to an increase or decrease in activity, moving positions such as sitting and standing, and emotions.

Example: Increase in activity—jumping jacks

Hypothesis: If I do five jumping jacks, then my heart rate will increase.

Test hypothesis. You can use the average resting heart rate from the previous experiment. If you do an experiment with an increase in physical activity like jumping jacks, then your data will reflect an increase in heart rate because the body requires more energy, which requires more oxygen, increasing the overall flow of blood in the body.

Support or refute the hypothesis based on the results. The hypothesis is supported if it aligns with the observed results. The hypothesis is refuted if the results don’t match the statement based on the variables.

Testing more than one variable at a time makes it difficult to interpret the results and support or refute the hypothesis. With one variable, the results can be associated with changes to that variable. To get the most reliable data to support or refute a hypothesis, an experiment should be completed several times to see if the results show the same trends.  

 

 

Explanation:

Penn Foster

which of a-d below is an example of diffusion, osmosis, or neither? Explain your answer in each case. a Water moves from a dilute solution in the soil into the cells in a plant's roots. b Saliva flows out of the salivary glands into your mouth. c spot of blue ink dropped into a glass of still water quickly colours all the water blue. d Carbon dioxide goes into a plant's leaves when it is photosynthesising.​

Answers

Answer:

a. osmosis (water must pass through the cell membrane so it is osmosis) b. neither (the saliva is secreted) c. diffusion (the dye doesn't pass through a membrane) d. diffusion"

Explanation:

I'm not sure, but I hope it helps.

The examples of diffusion, osmosis, or neither are as follows:

Water moves from a dilute solution in the soil into the cells in a plant's roots: Osmosis.Saliva flows out of the salivary glands into your mouth: Neither.A spot of blue ink dropped into a glass of still water quickly colors all the water blue: Diffusion. Carbon dioxide goes into a plant's leaves when it is photosynthesizing: Diffusion.

What is Diffusion?

Diffusion may be defined as the process through which the migration of individual molecules of a substance through a semipermeable barrier from a region of higher concentration to a region of lower concentration.

While osmosis significantly involves the migration of solvent molecules from a region of lower solute concentration to a region of higher solute concentration through a semi-permeable membrane. Osmosis is thought to be the opposite of diffusion with respect to the definitions.

Therefore, the examples of diffusion, osmosis, or neither are well described above.

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Which two organisms are most closely related, based on the tree above?

Answers

Answer:

dinosaurs and birds

Explanation:

Which refers to the process of going against the natural flow of heat and moving thermal energy from a low
temperature to a high temperature?
radiation
refrigeration
heating
O conduction

Answers

Answer:

conduction

Explanation:

Conduction is the process by which heat energy is transmitted through collisions between neighboring atoms or molecules. ... These vibrating molecules collide with their neighboring molecules, making them also vibrate faster. As these molecules collide, thermal energy is transferred via conduction to the rest of the pan.

Answer:

conduction

Explanation:

I got it right

Which space exploration activity has most helped astronomers determine the age of the solar system?

collection of lunar rock samples

experiments performed on the International Space Station

placement of mirrors on the lunar surface

collection of deep space images by the Hubble telescope

Answers

The best answer about the space exploration activity that has helped astronomers determine the age of the solar system is :  Collection of Lunar rock samples ( option 1 )

There are several exploration activities in which astronomers partake when they visit the solar system and they include :

experiments on the space station, placement of mirrors on the lunar surface and the collection of space images

But to determine the age of the solar system, collection of rock samples is the best activity, because rocks (one of the first substances found in the solar system )  are as old as where they are found.

Hence the space exploration activity that has helped astronomers determine the age of the solar system is the collection of lunar rock samples

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Answer:A

Explanation:Collection of lunar rock samples will help understand the moon more than the other options.

Drag each label to the correct location on the chart. Classify each process as weathering or erosion. PLEASE HELP me (I'm stuck) NO homo THOO

Answers

Lets do numbering of the labels to make labelling clear.

1. The Colorado River carves land in Arizona to form the Grand Canyon.

2. Cracks form in a sandstone wall surrounding a house.

3. A marble statue near the science museum is changing color due to rainfall.

4. After a rainstorm, soil and rock pieces litter the roadways.

5. The sand dunes in the Sahara Desert are changing shape.

Answer:

Weathering:

2. Cracks form in a sandstone wall surrounding a house.

3.A marble statue near the science museum is changing color due to rainfall.

Erosion:

1. The Colorado River carves land in Arizona to form the Grand Canyon.

4. After a rainstorm, soil and rock pieces litter the roadways.

5. The sand dunes in the Sahara Desert are changing shape.

Explanation:

Weathering and erosion, in both the processes rocks are broken down into particles but both the processes are different from each other. Weathering can be physical, chemical or biological process in which rock particles degrade without any movement while erosion is purely a movement of sediments in which particles move from one place to another under the influence of water and wind.

So, on the basis of this difference we can classify each label to the correct location:

Weathering (no movement of particles after degradation):

2. Cracks in a sandstone wall of a house.

3. Changing color of marble statue due to rainfall.

Erosion (Movement of particles from one place to another):

1. Formation of Grand Canyon, when the Colorado River carves land in Arizona.

4. Soil and rock pieces litter on roadways after rainstorms.

5. Changing shape of dunes in sahara desert.

Answer:

weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

Explanation:

Question 3
Some globular proteins are water soluble, while all fibrous/membrane proteins are water insoluble.
Which of the following statements BEST explains the reason for these differences?
A
Fibrous proteins have a large number of hydrogen bonds between the amino acids in the polypeptide chains that stabilize their structures, preventing solubility in water. The globular proteins that are water-soluble do not have as many hydrogen bonds between the amino acids in their peptide chains, allowing water solubility.
B
Fibrous proteins are configured in a way that exposes the polar side chains of the amino acids on the surface of the protein, preventing solubility in water. The globular proteins that are water soluble have nonpolar side chains on the surface of the protein, allowing water solubility.
C
Some globular proteins are configured in a way that exposes the polar groups of the amino acids on the surface of the protein, allowing water solubility. Fibrous proteins have nonpolar side chains on the surface of the protein, preventing water solubility.
D
Some globular proteins are composed of more than one polypeptide chain that weakly interacts with one another, allowing water solubility. Fibrous proteins are composed of only one polypeptide chain that tightly folds, preventing water solubility.

Answers

Globular proteins are spherical proteins which are water soluble and forms colloid in water.

The best statement which will explain the reason for difference in globular protein and fibrous proteins is statement C.

C. Some globular proteins are configured in a way that exposes the polar groups of the amino acids in the surface of the protein, allowing water solubility.

Fibrous proteins have non polar side chains on the surface of the proteins, preventing water solubility.

Globular proteins are water soluble. Fibrous proteins are not soluble in water.

Amino acids chain prevents folding up so that the chain is not broken and it remains in elongated form. The correct answer is C.

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In the following diagram, four different index fossils are labeled:

In this diagram, from top to bottom, an index fossil from the Jurassic period is labeled A, an index fossil from the Permian period is labeled B, an index fossil from the Devonian period is labeled C, and an index fossil from the Cambrian period is labeled D.

Public Domain

Which of the labeled fossils comes from the oldest organism?

A
B
C
D

Answers

Answer:

D, the fossil in the Cambrian period

Explanation:

there are time periods on the left side that go from youngest on the top and oldest on the bottom

In the labeled diagram the fossils comes from the oldest organism an index fossil from the Cambrian period is labeled at the point D. Thus, option D is correct.

What is the index fossil about?

Index fossils, which is also known as the key fossils or the guide fossils, are fossils of the organisms that are used to help determine the age of rock formations and sedimentary strata. Index fossils are typically chosen because they are easily recognizable, widespread, and existed for a relatively short period of time.

They are used as "markers" for specific time periods, and the presence or absence of certain index fossils can help scientists determine the relative age of rock formations.

In this scenario, the index fossil labeled A is from the Jurassic period, which lasted from about 201 to 145 million years ago. The index fossil labeled B is from the Permian period, which lasted from about 299 to 251 million years ago.

Therefore, In the labeled diagram the fossils comes from the oldest organism an index fossil from the Cambrian period is labeled at the point D. Thus, option D is correct.

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Find the average of 124, 456, 788, 343. Write it as the closest whole number

Answers

Average =
(124+456+788+343) / 4
= 1711 / 4
= 427.75
= 428

what are physical quantities? Give any two example.​

Answers

those quantities which can be measured directly or indirectly is called physical quantities.

If a force of 90 N is applied to each cart, which cart has the greatest
acceleration? *
1 point​

Answers

Answer: Cart 1 would have the greatest acceleration. It weights less and if you apply force it will go faster than other carts.

Explanation:

(at least so I think, don't shame me if I am wrong)

How does Photosynthesis relate to Cellular (aerobic) Respiration?
A. Photosynthesis breaks down glucose, Respiration builds it.
B. They are equal but opposite reactions.
C. Photosynthesis is for plants, while Respiration is for animals.
D. They are not related.

Answers

Answer: photosynthesis breaks down glucose. Hope you understand

Explanation:

Photosynthesis is related to Cellular (aerobic) Respiration in that they are equal but opposite reactions and the correct option is option B.

Photosynthesis and cellular respiration are complementary processes that are crucial for the energy flow in ecosystems. In photosynthesis, plants and some bacteria use sunlight to convert carbon dioxide and water into glucose and oxygen. This process stores energy in the form of glucose.

In cellular respiration, organisms, including plants and animals, break down glucose and other organic molecules in the presence of oxygen to release energy for cellular activities. This process consumes glucose and oxygen and produces carbon dioxide and water as byproducts.

Photosynthesis and cellular respiration are interconnected through the exchange of products and reactants. The oxygen produced in photosynthesis is used in cellular respiration, while the carbon dioxide produced in cellular respiration is used in photosynthesis. As a result, they form a continuous cycle that maintains the balance of oxygen and carbon dioxide in the atmosphere and provides energy for living organisms.

Thus, the ideal selection is option B.

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In 1937, a man employed to lay water pipes was found to be the source of a severe epidemic of typhoid fever. The man, an asymptomatic carrier of Salmonella enterica serotype Typhi, the bacterium that causes typhoid, habitually urinated at his job site. In the process, he contaminated the town's water supply with bacteria from his bladder. Over 300 cases of typhoid fever developed, and 43 people died before the man was identified as the carrier.
How was this carrier identified?
a) nasal swab
b) sputum sample
c) throat swab
d) urine culture

Answers

Urine culture

It literally says he peed in the water

The property of matter that allows a solid to flow is____.


1. Sublimation

2. Conductivity

3. Subduction

4. Plasticity

Answers

Answer:

hey mate I am 90 per cent sure that ans is option 2 ) conductivity

b3coz

Conductivity in metal is a measure of a material's ability to transmit heat, or electricity (or sound). The reciprocal of conductivity is resistance, or the ability to reduce the flow of those. ... Metals conduct electricity by allowing free electrons to move between the atoms

Answer:

2. Conductivity

Explanation:

Conductivity allows atoms to flow in solid by passing on vibration energy when any form of energy is applied.

which structures in plant cells build protein molecules under the control of the nucleus?
a) cell walls
b) chloroplasts
c)mitochondria
d) ribosomes

Answers

The cell walls, chloroplasts, and mitochondria play important roles in plant cells, they are not directly involved in building protein molecules under the control of the nucleus. D

Ribosomes are the structures in plant cells that build protein molecules under the control of the nucleus.

Ribosomes are tiny, complex molecular machines composed of RNA and protein molecules.

They are involved in the process of protein synthesis, where they facilitate the translation of genetic information from the DNA in the nucleus into functional proteins.

The nucleus of a cell contains the DNA, which serves as the blueprint for building proteins.

However, the actual synthesis of proteins occurs in the cytoplasm, outside the nucleus.

Ribosomes are responsible for this task.

Ribosomes can be found both freely floating in the cytoplasm and attached to the endoplasmic reticulum (ER).

The ones attached to the ER are called rough endoplasmic reticulum (rough ER) due to the presence of ribosomes on their surface.

These ribosomes associated with the rough ER are involved in the synthesis of proteins that are destined for secretion or for integration into the cell membrane.

The process of protein synthesis involves the decoding of the genetic information stored in messenger RNA (mRNA) by ribosomes.

Ribosomes read the mRNA sequence and assemble amino acids into a growing polypeptide chain, forming a functional protein.

Cell walls provide structural support, chloroplasts are responsible for photosynthesis, and mitochondria are involved in cellular respiration. However, the primary site for protein synthesis in plant cells is the ribosomes.

Therefore, the ribosomes (option d) are the structures in plant cells that build protein molecules under the control of the nucleus.

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One of the needs of today's taxonomy is:

O more information

O more species

O more interpretation

Ofewer species

Answers

Answer:

The correct choice is A

Explanation:

Taxonomy is the process of coining names for and categorising plants and animals into groups based on factors or qualities which are similar and or those which distinguish them.

Taxonomy helps to give meaning to the vast diversity of fauna and flora on planet earth.

Cheers!

Answer:

The answer is A

Explanation:

You can tell because the way that it is

Other Questions
Colgate-Palmolive Company reports the following balances in its retained earnings.($ millions) 2010 2009Retained earnings $14,329 $13,157During 2010, Colgate-Palmolive reported net income of $2,200 million.a. Assume that the only changes affecting retained earnings were net income and dividends. What amount of dividends did Colgate-Palmolive pay to its shareholders in 2010?b. This dividend amount constituted what percent of its net income? (Round your answer to one decimal place.) What is a limiting factor? Simplify 7.5 + n + 9.63. The weight of a box varies directly as the volume of the box. If a 138-pound box has a volume of 23 gallons, what is the weight of a box that has a volume of 25 gallons? A. 31 pounds B. 150 pounds C. 138 pounds D. 29 pounds d Name four other water-related activities that would interest thistype of tourist. A researcher is interested in determining whether typists are most productive in the morning, at midday, in the evening, or late at night. To answer this question, the researcher recruits 20 participants and assigns 5 participants to be measured at each time of day. To evaluate productivity, the researcher measures words typed per minute at each time of day. Morning Midday Evening Night99 42 80 8280 32 83 7899 45 94 7998 49 70 9779 38 79 96Mean 91 41.2 81.2 86.4SStotal = 9094.95What are the degrees of freedom for the numerator of the F-ratio?a. 2b. 3c. 16d. 19 Which property do the elements in each column of the representative elements series of the periodic table have in common?(1 point)number of neutronsnumber of orbitalsnumber of valence electronsnumber of protons Ritual is afundamentalaspect of culture. Write one paragraph a grandfather purchased a brand new car in 1958 for $2500.the car depreciated $325 a year. what would the car be worth 4 years after it was bought? Kim's Bridal Shoppe has 12,400 shares of common stock outstanding at a price of $58 per share. It also has 325 shares of preferred stock outstanding at a price of $88 per share. There are 400 bonds outstanding that have a coupon rate of 7.7 percent paid semiannually. The bonds mature in 39 years, have a face value of $2,000, and sell at 113 percent of par. What is the capital structure weight of the common stock If you have a polyatomic anion of Ammonium (NH41+), how many valence electrons must your Lewis Structure have? 8x + 2 = = 7 + 5x + 15 I need help and I will give five stars and a big thank you comrades How do I answer this A 0.100-kg metal rod carrying a current of 15.0 A glides on two horizontal rails 0.550 m apart and 2.0 m long, (a) If the coefficient of kinetic friction between the rod and rails is 0.120, what vertical magnetic field is required to keep the rod moving at a constant speed? (b) If the friction between the rod and rail is reduced zero, the rod will accelerate. If the rod starts from rest at the one end of the rails, what is the speed of the rod at the other end of the rails for this frictionless situation? Use the same field value you calculated in part (a). necesito un resumen del cuento "las mentiras del fuego" de Liliana Bodoc. Alguien que me pueda ayudar? how to simplify 75-3y Can you get hiv from animals such as cows and chickens ? What is the slope of the line that passes through the points listed in the table? x | y4 | 75 | 3A. 4 B. 3 C. -3 D. -4 Consider the line L(t)=5+t,1+5t. Then:Choose perpendicular, parallel or neither. (PS. Answers below may not be true.)