Words to Know Write the letter of the definition next to the matching word as you work through the lesson. You may use the glossary to help you. eukaryote A. A protective layer surrounding a cell that controls what enters and leaves the cell spore B. An organism composed of one or more cells that contain nuclei cell membrane C. A reproductive cell that is resistant to harsh conditions and capable of developing into an adult without fusing with another cell prokaryote D. A single-celled organism that lacks a nucleus and membrane-bound organelles

Answers

Answer 1

Answer:

Statement A - cellular membrane

Statement B - eukaryote

Statement C - spore

Statement D - prokaryote

Explanation:

The cell membrane is a protective layer present around the cell and cell organelle that regulates and allows different molecules to enter and exit to regulate homeostasis.

Eukaryotes are the organism that can be unicellular or multicellular with the cells contain a nucleus in it.

Spores are reproductive cells that has a resistant layer that protects the cell from an unfavorable condition and capable to form an adult.

An organism that is unicellular and lacks the nucleus is known as a prokaryote and bacteria is an example of such organisms.


Related Questions

In pigeons, the allele B produces blue feathers. The allele W produces white feathers. The B and W alleles are codominant. A blue and white pigeon BW is crossed with a solid white pigeon WW. What percent of the offspring are expected to be blue and white?

Answers

Answer:

The correct answer is - 50%.

Explanation:

Codominance is a type of inheritance that takes place when the genotype of an individual organism in heterozygous condition express traits of both alleles.

Cross between blue and white pigeon and pure white:

BW × WW and gametes will be B and W and W and W

     B         W

W   BW     WW

W    BW     WW

There are 50% of BW that is blue and white pigeons

What are the (exact) products and reactants for the electron transport chain in cellular respiration?

Answers

Answer:

Cellular respiration is the process responsible for converting chemical energy, and the reactants/products involved in cellular respiration are oxygen, glucose (sugar), carbon dioxide, and water. While the exact steps involved in cellular respiration may vary from species to species, all living organisms perform some type of cellular respiration. The equation for aerobic respiration shows glucose being combined with oxygen and ADP to produce carbon dioxide, water, and ATP

Explanation:

Which would have most likely stopped Mendel from finding a pattern in his results?
O A. If seed shape did not have a clearly recessive form
B. If having a smooth seed had been a dominant trait
C. If having a wrinkled seed had been a recessive trait
D. If garden peas produced large numbers of offspring​

Answers

Answer:

A. If seed shape did not have a clearly recessive form

Explanation:

To study inheritance patterns, Mendel studied a few characteristics of pea plant -e.g. pea colour, shape, plant height. These characteristics had to be very clear dominant and recessive forms to distinguish between, otherwise detecting the patterns would not have been obvious.

For example, if crossing a wrinkled seed plant with a smooth seed plant made a semi-wrinkled plant, Mendel would not have been able to study the inheritance of dominant and recessive traits.

Answer:

A. If seed shape did not have a clearly recessive form.

Explanation:

Deep-oceanic trenches are formed a subduction
Zones
at)
plate boundaries.
Divergent
Convergent
Transform
Pacific

Answers

Answer:

Convergent

Explanation:

In particular, ocean trenches are a feature of convergent plate boundaries, where two or more tectonic plates meet. At many convergent plate boundaries, dense lithosphere melts or slides beneath less-dense lithosphere in a process called subduction, creating a trench.

Answer:

Im pretty sure its convergent!

Explanation:

Which of the following is NOT one of the three types of neurons?

Group of answer choices

Peripheral

Sensory (or Afferent)

Motor (or Efferent)

Interneurons

Answers

Answer:

Sensory (or Afferent)

Explanation:

the answer is Peripheral

Serenade is a country with a high rate of disease. What conclusion can be drawn about the health of the people in
Serenade? Select all that apply.
Serenade has a large number of unhealthy people,
Serenade has a small population of unhealthy people.
Serenade has more unhealthy people than healthy people,
Serenade has more healthy people than unhealthy people.

Answers

Answer:

1 (and 3))

Explanation:

The first answer would be most correct, but you might also be able to draw the conclusion that there are more unhealthy people than healthy people.

Answer:

1st one

Explanation:

I believe that you can assume the 1st one, but you can't really assume that they have more unhealthy people than healthy. You don't have any numbers to prove that.

Which one is odd one out on the basis of respiration:
Amoeba, cockroach, earthworm, euglena

Answers

Answer:

Cockroach is you answer.

Explanation:

They do this by using a very efficient breathing system that uses air filled tubes, called trachea, to deliver oxygen directly to cells. Oxygen flows in as required into the tracheal system through valves on the insect, called spiracles. But, sometimes, they shut their spiracles and stop breathing.

Organize the following groups of elements in order from least to most electronegative (Chromium, Zinc, Tungsten, lodine ) piz help me

Answers

Answer:Zinc 1.65

Chromium 1.66

Tungsten 2.36

Iodine 2.66

Zinc 1.65, Chromium 1.66, Tungsten 2.36 and Iodine 2.66

What is electronegativity?

The term "electronegativity" describes how attracted an atom is to the bonding electrons in molecules as opposed to other atoms.

American chemist Linus Pauling developed a set of dimensionless variables known as electronegativity values that vary from a little under one for alkali metals to a maximum of four for fluorine.

Electropositive elements are those that are on the left of the periodic table and have low electronegativities. We shall use the key attribute of the order of electronegativities F > O > N > C to explain the chemical properties of organic molecules.

Therefore, Zinc 1.65, Chromium 1.66, Tungsten 2.36 and Iodine 2.66.

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Part 1: Which, if any, substance is soluble in water?
Part 2: Explain how the data helped you determine solubility for both substances for temperatures 20 °C to 80 °C

Answers

Answer:

Part 1: Sugar and salt

Explanation:

I only have the answer for part one sorry

When a cell undergoes mitosis, the resulting daughter cells-

Answers

Answer:

a

Explanation:

Answer:

I believe it's the last one! :)

what do the arrows represent?​

Answers

Answer:

Hope it help you

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Explanation:

Arrows have come to represent protection and defence from any evil that can come to you. Sustenance – Arrows were used to fight enemies and to hunt food, two important aspects of sustaining life. As a result, an arrow symbolizes maintaining and protecting life.

REAL NAME - SHRESTH DUBEY

The arrows in a food chain represent the flow of energy or the transfer of nutrients between different organisms in an ecosystem.

They indicate the direction of energy transfer, showing which organism is being consumed by another. The arrow always points from the organism being consumed (prey) to the organism consuming it (predator).

The primary producers, such as plants or algae, are at the beginning of the food chain and transfer energy to herbivores (primary consumers), which are then consumed by carnivores (secondary consumers) or other higher-level consumers.

The arrows help depict the interconnectedness and energy flow within an ecosystem, illustrating the feeding relationships between organisms.

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Your question is incomplete, but most probably your full question was.

What do the arrows in a food chain represent?

Information on Osmosis

Answers

Answer: OSMOSIS

Explanation:

Osmosis is when solvent molecules move through a selectively permeable membrane into a region of a higher solute concentration, so that it would equalize the solute concentration on both side. (THINK: water always goes to salt, never the other way around)

Some tools have various levels of graduations. For example, a ruler may have graduations for both millimeters and centimeters. When measuring the length of an earthworm, which graduations would allow for the most accurate measurement?
millimeters
centimeters
decimeters
meters

Answers

Answer: A

Explanation:

I took the test

Millimeters allow for the most accurate measurement.

Is cm extra accurate than mm?

A paper clip may be measured with both units (millimeter or centimeter) but a millimeter is the greater appropriate size to get an accurate measurement.

Why are millimeters more specific?

A ruler marked in millimeters is extra unique than a ruler marked best in centimeters, considering a millimeter is a smaller unit than a centimeter.

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What is the relationship between population number and carrying capacity in a stable population

Answers

Answer:

As a population grows in an area, a population may experience the effects of increased densities. In a given area, is the maximum population size of the species that the environment can sustain is called the carrying capacity. Carrying capacity is determined by the amount of available resources (food, habitat, water).

Explanation:

hope this helps<3

Energy in an ecosystem flows directly from
a. producers to tertiary consumers
b. producers to secondary consumers
C. tertiary consumers to secondary consumers
d. secondary consumers to tertiary consumers

Answers

energy enters an ecosystem through photosynthesis. By feeding on plants and on one another, animals play an important role in the movement of the matter/energy though. they also influence the quantity of plant and biomass present. so the anwser is D, secondary consumers to tertiary consumers

Answer:

''d' is correct.

Explanation:

Producers-->Primary Consumers-->Secondary Consumers-->Tertiary Consumers

Match the correct definition with its word
rough endoplasmic reticulum protein synthesis
lysosome store calcium ions
nucleus create lysosomes
mitochondria create energy through respiration
smooth endoplasmic reticulum break down cellular food and waste
Golgi body controls cell activity

Answers

Answer:

rough endoplasmic recticulum synthesis protein to the cell.

Answer:

rough endoplasmic recticulum synthesis protein to the cell.

Explanation:

Why does evolutionary theory absolutely require the earth to be very
old?

Answers

Answer:

Mainly because Evolution takes millions and millions of years to happen.

Explanation:

Evolutionary theory require earth to be very old because the process of evolution takes millions of year to happen.

What do you mean by evolution ?

Evolution is the process through which a population of organisms evolves as new generations replace ancestors. Individual species do not evolve; rather, communities of organisms do.

Natural selection processes like as environmental change, predation, or human disturbance create evolutionary adaptations, and these processes must continue and grow widespread for the change to remain and accumulate. That happens less frequently and slowly than you may expect.

Scientists have determined that Earth is 4.54 billion years old, with a 50 million year error, by dating the rocks in its ever-changing crust as well as those in Earth's neighbors, including the moon and passing meteorites.

Therefore, the Earth needs to be very old for evolutionary theory to be true.

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In Hawaii, new land forms when lava erupts from Kīlauea volcano and hardens. The new land is without any living things. The first organisms to populate the surface of that new land are known as species. With time, a series of changes called succession occur on the new land through which it becomes colonized by a variety of organisms.

Answers

Answer:

Primary succession

Explanation:

The new landforms that are devoid of any vegetation have barren and rocky environment are colonized by the first plant species like grass and moss is called as primary succession which changes with time and occurs on new lands that not colonized yet and later on gets colonized a variety of organisms.

How does the Gulf Stream affect weather in the United States? A. It brings cooler temperatures from the poles. B. It brings cooler temperatures from the tropics. C. The warm surface currents help create storms and fog. D. The cool surface currents produce cooler weather and fog.

Answers

Answer: C. The warm surface currents help create storms and fog.

Explanation:

The gulf stream can be defined as strong ocean currents that brings about the warm wind currents from the oceanic water of the gulf of Mexico to the eastern coastal areas of the United States. These wind currents bring warm weather conditions in the United States. The strong wind currents can also cause storms and fog in the coastal areas of the United States.

     

In one plant species petal color follows INCOMPLETE DOMINANCE. If there
are alleles for both red and white plants, what would a heterozygous plant's
phenotype be?
Red
Pink
White
Red and White

Answers

Answer:

Pink

Explanation:

Incomplete dominance is when one allele is not entirely dominant over the other. The resulting phenotype of the heterozygote is intermediate between the two alleles. That means the flowers would be pink.

Red  - no, this would be true if red was dominant to white

Pink  - yes, this is an intermediate phenotype

White  - no, this would be true if white was dominant over red.

Red and White  - no, this would be true if the alleles were co-dominant and both equally but independently expressed.

Explain in detail how changes in light intensity or carbon dioxide levels might change rates of photosynthesis.

Answers

Without enough light, a plant cannot photosynthesise very quickly - even if there is plenty of water and carbon dioxide and a suitable temperature. Increasing the light intensity increases the rate of photosynthesis, until some other factor - a limiting factor - becomes in short supply.

Analyze the diagram below. Which of the terms best describes it?

Answers

Answer:

disaccharides

Explanation:

they are formed by linking 2 monosaccharides through condensation

monosaccharides are simple sugars or glucose

Disaccharides are those types of carbohydrates that, when hydrolyzed by acids or enzymes, produce two molecules of monosaccharides that may or may not be identical. Thus, option A is correct.

What is important in formation of disaccharides?

Mono- and disaccharides, sometimes known as sugars, make up a significant portion of the carbohydrates included in food.

Disaccharides function similarly to other carbohydrates as a source of energy for the body.

When we consume foods containing disaccharides, our systems convert them into monosaccharides, or simple sugars, for absorption in the small intestine.

This condensation process is also referred to as a dehydration reaction, since a water molecule is released during this process.

Therefore, disaccharide is formed from monomeric subunits.

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why is the SI measurement system so important to the scientific community



enter the answer in the space provided

Answers

Answer:

without the ability to measure, it would be difficult for scientists to conduct experiment of form theories and also the chemical industry, it is also essential in farming, engineering, construction, manufacturing, commerce and numerous other occupation and activities.

A species is a particular type of living thing that can reproduce by interbreeding among themselves.

True False

Answers

I believe the answer is True. I could be wrong but let me know!!

What is the Scientific Method and what are the steps?

Answers

Answer:

The basic steps of the scientific method are: 1) make an observation that describes a problem, 2) create a hypothesis, 3) test the hypothesis, and 4) draw conclusions and refine the hypothesis.

Explanation:

its correct ok

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Answer:

The basic steps of the scientific method are:

1) make an observation that describes a problem,

2) create a hypothesis,

3) test the hypothesis, and

4) draw conclusions and refine the hypothesis.

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discribe the passive transport movement of a substance down it's concentration gradient through a protein channel embedded in the cell membrane ​

Answers

Answer:

The passive transport of a substance by its concentration gradient through a protein channel is called facilitated diffusion.

Explanation:

Facilitated diffusion is a type of passive transport through the membrane, which involves the use of integral proteins called protein channels or transport proteins, and moves substances unable to cross the membrane by simple diffusion.

An example of facilitated diffusion through protein channels is the ion channel. Ions, being electrically charged particles, cannot pass through the plasma membrane. A protein channel -which crosses the whole thickness of the membrane- constitutes a space where ions can move depending on their concentration gradient.

In facilitated diffusion, both protein channels and transport proteins do not require energy, so it is a transmembrane passive transport process.

During Mitosis, in which phase do two nuclei form?
A.prophase
B.anaphase
C.telophase
D.metaphase

Answers

C. I believe

In telophase, the cell is nearly done dividing, and it starts to re-establish its normal structures as

Which of the following explains why antibiotics will not work against a viral infection?

a
Viruses replicate at such an accelerated rate that antibiotics are unable to control colonization and growth.

b
Viruses create highly resistant endospores that preserve their genetic material against antibiotics.

c
Viruses are not cellular and do not contain the lipid and protein markers targeted by antibiotics.

d
Viruses exchange genetic material with nearby bacteria that have become resistant to antibiotics.

Answers

Answer:

C.

Explanation:

Viruses don't have cell walls that can be attacked by antibiotics; instead they are surrounded by a protective protein coat.

I'm pretty sure the answer is C

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After a forest fire what would be the first change in a forest?

Pioneer species are established

A climax community is established

Wind carries seeds to the area and plants grow from these seeds

New soil forms from rock

Answers

c because

The first plants to move into the new bare ground after a wildfire are wildflowers or “weeds.” These fast-germinating, leafy herbaceous plants are also known as “forbs” or “ephemerals.” They quickly germinate, grow and produce a new crop of seeds.

Answer:

Pioneer species are established

Explanation:

A forest fire would represent the process of secondary succession.

In secondary succession, the first stage is the growth of pioneer species. The soil still remains, so no new soil needs to be made.

This rich soil allows for pioneer species to grow in the forest.

The primary source of energy for most organisms are

Answers

Answer: The Sun

3.1 The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers such as plants, algae, and cyanobacteria use the energy from sunlight to make organic matter from carbon dioxide and water. This establishes the beginning of energy flow through almost all food webs.

Explanation:

Answer:

The main energy source for life is the Sun

Explanation:

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Which components are part of all scientific investigations? Check all that apply. Which is a correct way to subtract from a number? (A). Add 100 then subtract 1 (B). Add 100 then add 2. (C). Subtract 100 then add 2 (D). Subtract 100 then add 1. Melissa is very good at her Revenue job. Which skills does Melissa most likely have?performing specialized work to support an embassyanalyzing information from discussions or applicationspublic speaking and debatingreviewing and analyzing tax forms! Find the value of x. Given the point (1, 2) and a slope of 4, write the equation in point slope form. Which topics relate directly to the themes developed in Frankenstein? A florist must make 5 identicalbridesmaid bouquets for a wedding. The budget is$160, and each bouquet must have 12 flowers. Rosescost $2.50 each, lilies cost $4 each, and irises cost$2 each. The florist wants twice as many roses as theother two types of flowers combined. fplzz ans my question factorize p^4+4 Who was the most imperialistic president? Bank Reconciliation and Entries The cash account for Stone Systems at July 31, 20Y5, indicated a balance of $12,270. The bank statement indicated a balance of $15,440 on July 31, 20Y5. Comparing the bank statement and the accompanying canceled checks and memos with the records reveals the following reconciling items: Checks outstanding totaled $5,560. A deposit of $5,790, representing receipts of July 31, had been made too late to appear on the bank statement. The bank had collected $3,010 on a note left for collection. The face of the note was $2,860. A check for $800 returned with the statement had been incorrectly recorded by Stone Systems as $880. The check was for the payment of an obligation to Holland Co. for the purchase of office supplies on account. A check drawn for $400 had been incorrectly charged by the bank as $40. Bank service charges for July amounted to $50. Required:Prepare a bank reconciliation. Denise buys a $100,000 condo using a $20,000down payment on a 30-year fixed-rate loan.After 5 years of payments, she's madeapproximately $24,000 in payments and stillowes approximately $75,000. How muchequity does Denise have in her house? * Plz help with this question PLZ HELP ME I NEED THE ANSWER IDK WHAT IT IS!!!!!!!!!San and Francisco want to help cut back on the large levels of air pollution in their city. Which of the following steps should they take?A.use public transportation systems less oftenB.drive her personal car as often as possible to help raise emissionsC.try to use her citys bus system more oftenD.purchase a less fuel-efficient vehicle Which task did the pioneer's morningroutine include?A. building a campfireB. preparing breakfast and lunchC. setting up camp Which of these elements is most likely to be a colorless gas based on the type of element? Al, Pd, Ar, Cs Krego earns $2,456.75 every month. He also earns an extra $4.75 every time he sells a new gym membership. Last month, Krego sold 32 new gym memberships. How much money did Krego earn last month? Round to the nearest penny when necessary. Read the passage:Ice cream as we know it can be traced back many centuries ago. Legend has it that it began in 9th century in Arab cities, such as Baghdad, Damascus, and Cairo. Near the end of the 13th century, Marco Polo returned to Italy after his travels through China with news of a frozen creamed dessert. In Europe, ice cream could only be found in Italy. Then, in 1533, Italian noblewoman Catherine de'Medici of Italy married Henry II of France. As Queen, Catherine introduced ice cream to France. Soon, the popularity of the dessert spread across all of Europe.Select the evidence from the text that supports the meaning of the word traced: to find the origin of something. In Europe, ice cream could only be found in Italy. Legend has it that it began in 9th century in Arab cities, such as Baghdad, Damascus, and Cairo. Near the end of the 13th century, Marco Polo returned to Italy after his travels through China with news of a frozen creamed dessert. . . . the popularity of the dessert spread across all of Europe.PLEASE HELP WILL GIVE BRAINLYEST what are the units for the volume of a solid volume of a liquid What Were male citizens of ancient Athens expected to do How were the Militiamen in Lexington and Concord warned that the British were coming?A. By smoke signals set off in Boston B. By riders such as the famous Paul revere C. By secret letters sent weeks before D. By messages through the air on homing pigeons