Answer:
Ecological footprint estimates the requirements of renewable resources that a population consumes to live a particular lifestyle. Some ecologists are concerned because the result of the ecological footprint shows that the demand of the population is increasing in comparison to the supply of nature.
For example in India, the ecological footprint shows negative impact of population demand over supply of nature.
Which is a primary function of a vacuole in a cell?
O A. enzyme production
O B. protein synthesis
O C. storage
D. reproduction
Answer:
C. storage
Explanation:
Vacuoles are membrane-bound sacs within the cytoplasm of a cell that function in several different ways. In mature plant cells, vacuoles tend to be very large and are extremely important in providing structural support, as well as serving functions such as storage, waste disposal, protection, and growth.
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[tex] \Large{ \boxed{ \bf{ \color{green}{The \: correct \: answer:}}}}[/tex]
Storage (Option C)
Explanation:-Vacuoles store dissolved materials such as amino acids, sugars, organic acids and some type of proteins.Like, In Amoeba they store the food material, ingested by the organism.Explore more:-Vacuoles are membrane bound organelles mostly found in plant and fungal cells.The term was coined by "Dujardin".The membrane of vacuoles is called tonoplast.They are enclosed compartments which are filled with water containing inorganic and organic molecules. In plant cells, they are large and occupy almost 90% of the cell. But, they are small or even absent in animal cells.⏩️ Refer to the attachment....
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water pollution is bad because
(a) is difficult to prevent
(b) is a natural consequences of farming
(c) is difficult to detect
(d) harm living things
Answer:
d harming living things.
Answer:
It harm living things
Explanation:
Because if a water is polluted it harm living things
Always use the gross adjustment knob before using the fine adjustment knob when focusing on the microscope 1 2 False True
6. How are excess salts that accumulate in cells transferred to the blood stream so they can be removed from the body? Explain how this process works in terms of tonicity.
Answer:
Tonicity is the concentration of a solution compared to another, with regards to the number of solutes in these solutions. Too many solutes in a cell may cause them to be hypertonic hence absorb water too much water and lyse. Therefore, these solutes are excreted to the blood-stream through active transport and facilitated diffusion. These solutes are then excreted by the kidneys. If they are not excreted, the osmotic pressure (due to the inflow of water to the bloodstream by osmosis) may cause high blood volumes being pumped by the heart hence high blood pressure
Explanation:
Tonicity is the concentration of a solution compared to another, with regards to the number of solutes in these solutions. Too many solutes in a cell may cause them to be hypertonic hence absorb water too much water and lyse.
What is excreted from the blood stream?The solutes are excreted to the blood-stream through active transport and facilitated diffusion. These solutes are then excreted by the kidneys. If they are not excreted, the osmotic pressure due to the inflow of water to the bloodstream by osmosis may cause high blood volumes being pumped by the heart hence high blood pressure.
Osmosis is the net movement of water across a semi-permeable membrane from an area of lower gradient concentration to an area of higher gradient concentration. On the other hand, tonicity is the ability of an extracellular fluid to make water move into or out of a cell through osmosis. A solution's tonicity is related to its osmolarity or the total concentration of the solutes in a solution.
Therefore, Tonicity is the concentration of a solution compared to another, with regards to the number of solutes in these solutions.
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all members of the plant kingdom contains chlorophyll? true or false
Answer:
this is true
Explanation:
if it isnt in the leaves of a plant, then its in the stem, or maybe, the entire thing is green!
flowers have green stems, trees have green leaves, lily pads are green, etc.
hope this helped
Answer:
True
Explanation:
All plants contain chloryphyll
is there any evidence to prove that the earth is spherical
Answer:
physics.
Explanation:
Answer:
Satellites
Explanation:
Satellites take images and they launched a camera up to the moon and captured what the earth look liked
. Which is a likely location for primary succession? grassy hillside newly mowed field forest floor large boulder
Answer:
A likely location primary succession is a large Boulder.
Explanation:
primary succession begins on Rock formations, such as volcanoes on mountains, or in a place with no organisms or soil.
What is measurement? Write any two importance of it. Why do we need measurement?
Answer:
The comparison of an unknown quantity with a known established standard quantity.
any two important of it are:
a) it helps in performing scientific experiments to establish truth about a physical phenomenon.
b) It helps in performing experiment for making our daily food.
6. Which type of seismic wave is highlighted in the image?
O A. P wave
B. S wave
O C. Love wave
D. Rayleigh wave
Answer:
Rayleigh wave
Explanation:
Rayleigh waves are a type of surface acoustic wave that travel along the surface of solids. They can be produced in materials in many ways, such as by a localized impact or by piezo-electric transduction, and are frequently used in non-destructive testing for detecting defects.
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Rayleigh wave, surface acoustic waves called Rayleigh waves move along the surface of solids, hence option D is correct.
What is seismic wave?They are commonly employed in non-destructive testing to find flaws and can be created in materials in a variety of methods, as by a localized impact or by piezoelectric transduction.
These include what are known as Rayleigh waves. A Rayleigh wave's amplitude decreases with depth below the surface and becomes noticeably tiny at depths greater than a few wavelengths.
As a result, the disturbance is limited to a solid's surface layers. The motion experienced by the surface layers includes both transverse and longitudinal components.
Therefore, Rayleigh wave type of seismic wave is highlighted in the image.
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fundamental molecules produced in photosynthesis is
(a) glucose (b) amino acids (c) fatty acids (d) nucleotide
glucose is the fundamental molecules produced in photosynthesis
plz mark me as brilliant answer
What is it called when vesicles are used to move substances out of the cell ?
O A. Passive
O B. Endocytosis
O C. Diffusion
D. Exocytosis
Answer:
d
Explanation:
deforestation can be reduced by combined effort of all? give reason
Explanation:
Deforstation can be reduced by combined efort of all as if we combinely work together to shop deforestion and start afforestation there is a high chance of reduction of deforestation. All people together can start afforestion in sense the deforestion awarness would be raised and everyone would stop deforesting and start afforesting.
Which statement describes the role of the organism indicated by the blue arrow in the food web?
A secondary consumer that obtains its energy from the consumption of plants
A primary producer that recycles organic molecules from sunlight
A primary decomposer that recycles organic molecules by breaking them down
A primary consumer that obtains its energy from the consumption of plants
Answer:
A primary consumer that obtains its energy from the consumption of plants
Explanation:
Organisms that eat the producers are the primary consumers. In this case, the producer is the grass, which is then eaten by the primary consumer, the meadow vole.
In humans, the ability to roll up the sides of the tongue into a U-shape is controlled by one gene. Ability to roll the tongue is dominant to the inability to roll it. If two people who can roll their tongues each had one parent who could not, what is the probability that they will have a child who cannot roll his/her tongue
Answer:
25%
Explanation:
male
can roll tongue - cannot roll tongue
female
can roll tongue - cannot roll tongue
If they have a child, the possible combinations are:
1)
father's gene: can roll tongue
mother's gene: can roll tongue
RESULT = THE CHILD WILL BE ABLE TO ROLL HIS/HER TONGUE
2)
father's gene: can roll tongue
mother's gene: cannot roll tongue
RESULT = THE CHILD WILL BE ABLE TO ROLL HIS/HER TONGUE
3)
father's gene: cannot roll tongue
mother's gene: can roll tongue
RESULT = THE CHILD WILL BE ABLE TO ROLL HIS/HER TONGUE
4)
father's gene: cannot roll tongue
mother's gene: cannot roll tongue
RESULT = THE CHILD WILL NOT BE ABLE TO ROLL HIS/HER TONGUE
Substance A and substance B are mixed together. To separate the mixture, water is added, and substance A is filtered out. Then, the remaining liquid is heated to remove the water, leaving a residue of substance B. Which statement about substance A and substance B could be correct?
Substance A is rice, and substance B is sugar.
Substance A is rice, and substance B is sugar.
Substance A is sugar, and substance B is instant coffee.
Substance A is sugar, and substance B is instant coffee.
Substance A is sand, and substance B is alcohol.
Substance A is sand, and substance B is alcohol.
Substance A is alcohol, and substance B is salt.
The correct answer would be that substance A is rice, and substance B is sugar.
For substance A to be filtered out, it means that A is a water-insoluble substance and for substance B to be recoverable by evaporating off the water, it means that B is water-soluble.
Thus, A can neither be sugar nor alcohol because neither can be recovered by filtration. Also, B can neither be coffee nor alcohol because they can not be recovered as residue through evaporation of water.
Therefore, the only correct answer is that substance A is rice, and substance B is sugar because rice can be filtered out from water while the water-soluble sugar can be recovered by evaporating the water.
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Answer:
substance A is rice, and substance B is sugar.
Explanation:
Which of the following processes would be an example of an anabolic pathway?
A set of coupled reactions that are exergonic
A set of reactions that break covalent bonds between molecules to release free energy
A set of reactions that release energy that can be used to drive cellular work
A set of reactions that combine monomers into larger, more energy-rich polymers
Answer:
A set of reactions that release energy that can be used to drive cellular work
Explanation:
I think im not so sure!!
Answer:
The answer is
D - a set of reactions that combine monomers into larger, more energy-rich polymers
Explanation:
I can't explain it, I just know I'm right!
While examining the scene of a murder, Investigator Allen notes that the newspaper is opened on the kitchen table. He concludes that the victim had already gone out to get his newspaper before he was murdered. This evidence is an example of an indicative act.
True
False
Answer:
The correct answer is:
Explanation:
True is the correct answer...
Hope this helps....
Have a nice day!!!!
what modification do we find in the steam and petiole of the aquatic plants
Answer:
Explanation:
Modification Definition Example
1) Tendrils The leaves are modified into slender wiry and
coiled structures called leaf tendrils and support climbers to climb Pisum Sativum
2) Spines The leaves modified into a pointed structure and usually protect them from herbivores. Opuntia
3) Phyllode It is a green extended structure formed by the modification of petiole or rachis of leaf that carries out photosynthesis. Acacia
4) Storage leaves Leaves become fleshy due to storage of water and food material. Aloe
5) Cotyledons The mature embryo shows either one or two cotyledons. Angiosperms and gymnosperms
6) Leaf bladders Some of the leaves of aquatic plants modified into leaf bladders to trap small insects. Utricularia
7) Leaf Pitcher Lamina of the whole leaf is modified into a lid known as a pitcher which traps insects to fulfil the need of nitrogen. Nepenthes
How do DNA and RNA differ?
Answer:
DNA is a long polymer with deoxyriboses and phosphate backbone. Having four different nitrogenous bases: adenine, guanine, cytosine and thymine. RNA is a polymer with a ribose and phosphate backbone. Four different nitrogenous bases: adenine, guanine, cytosine, and uracil.
Answer:
DNA contains the sugar deoxyribose, while RNA contains the sugar ribose. DNA is a double-stranded molecule, while RNA is a single-stranded molecule. DNA is stable under alkaline conditions, while RNA is not stable. DNA and RNA perform different functions in humans.
Explanation:
Rigor mortis occurs because ________. Group of answer choices proteins are beginning to break down, thus preventing a flow of calcium ions sodium ions leak into the muscle causing continued contractions the cells are dead no ATP is available to release attached actin and myosin molecules
Answer:
.
Explanation:
.
What happens when the positive transcription factor affinity is slightly lower than the negative transcription factors affinity? A. mRNA is made in large quantities in infrequent batches B. mRNA is made in small quantities in frequent batches. C. mRNA is made in large quantities in frequent batches D. mRNA is made in small quantities in infrequent batches.
Answer:
a
Explanation:
a
Answer: a!!
Explanation: this is correct!
Many male birds will expend A great deal of energy building nests. Females will mate with the males who build the best nest. This is best described as an example of ___.
a) natural selection
b) sexual selection
c) runaway selection
d) an invasive species
e) disruptive selection
Answer:
B
Explanation:
Female birds mate with the males who build the best nest is the example of option b. sexual selection.
Sexual selection is a mode of natural selection in which one sex members choose the mate with the member of the other sex for mating.
These members of the biological sex prefer opposite sex members for species-specific characteristics in individuals of the other sex such as best building nest in birds. Other male birds compete with members of the same sex to get selected by members of the female birds in this instance.Thus, the correct answer is option b. sexual selection as female birds prefers species-specific traits to select their mating partner by best nest building by males.
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What is mean by photosynthesis?
Answer:
the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water.
Hey there!
Photosynthesis is the reaction that converts light energy to chemical energy in sugar and carbohydrates. Humans can't eat sunligh, so we eat the plants. Plants convert the energy in the sunlight into chemical energy using chlorophyll. Chlorophyll is a molecule produced by plants, algae and cyanobacteria, which aids in the conversion of light energy into chemical bonds. It is the reen pigment found in the chlorookasts of higher plants. They are a part of our ecosystem, and they are lower on the food chain.
Hope this helps! I promise I did not copy or anything like that from the internet.
Have a great day! :)
Variation in rates of cell division is regulated by a cell-cycle control system—a group of molecules, mostly proteins, within a cell that coordinates the events of the cell cycle. This control system functions through a system of checkpoints. Which assessment occurs at the G2/M checkpoint?
Answer:
See the answer below
Explanation:
At the G2 checkpoint, the accuracy of chromosome replication is assessed along with the cell size and proteins within the cell. The cell division will only proceed if all the listed conditions appear all right.
At the M checkpoint, the correct attachment of spindles to the kinetochores of the sister chromatids of each chromosome is assessed. This is to ensure that chromosomes are correctly separated to the opposite poles of the cell.
1.What is the Independent Variable?
5 points
Connor and Miguel want to investigate if the type of
fertilizer changes the color of their hydrangea flowers.
They select 10 hydrangea bushes and plant them in the
same yard with the same type of soil. Every bush gets 3
cups of fertilizer, but each receiving a different brand.
One bush gets no fertilizer. All bushes receive morning
sunlight and no afternoon sunlight. All bushes are watered
the same amount every other morning. After four weeks,
the boys observe the color of the blooms on each bush.
the bush
the soil
the fertilizer
the color of the plants
Answer:
the type of fertilizer
Explanation:
because independent variable is something that effects that the whole outcome of the experiment and here the type of fertilizer chosen is going to be the thing that is going to effect the ending result
When objects of two different temperature are in contact, what happens?
Answer:
The answer is C.
Explanation:
This is because the objects will exchange thermal energy, until thermal equilibrium is reached, i.e. until their temperatures are equal. We say that heat flows from the hotter to the cooler object.
Energy is transferred from a warmer to a cooler object through the phenomenon of heat. For instance, a large pan of lukewarm water will gain heat from a lit match (a higher temperature object) (lower temperature object). Thus, option C is correct.
What change in temperature when object are in contact?It feels warmer in your hands to hold a hot cup. The heat is moving from one object to another, which is what you are feeling. Your hands receive the hot chocolate's thermal energy.
Heat is exchanged when two objects are at different temperatures. Up until the two items are at the same temperature, the cooler object warms up. Always, heat energy moves from a hot object to a cooler one.
The colder end will get energy from the hot end as it passes through the rod. The temperature will eventually equalize across the entire rod. Wearing gloves is crucial when working with hot metal, for this reason.
Therefore, The warmer object transfer heat energy to the cooler object.
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If the study on the relationship between W. bancrofti and Wolbachia is correct, then combined with the results of the trials, significant numbers of microfilariae do not survive in circulation beyond what time period
Answer:
6 months
Explanation:
First, we must remember that doxycline has an effect only on nematodes, but it cannot effectively prevent microfilariae presented before treatment in the blood of the infected. What we can conclude from this is that it is possible that microfilariae grow and develop, however they will not be able to reproduce, since W. bancrofti is completely dependent on Wolbachia for replication. With that, the microfilariae are running out of time and with about 6 months the patients are free of any trace of microfilariae. So we can conclude that 6 months is the longest time that microfilariae survive in circulation.
Jameson lives in a city on the shores of the Atlantic Ocean. The temperature fluctuations are relatively small in his city because takes longer to heat up and cool down due to its high .
Answer:
Water, high specific heat capacity
Explanation:
The temperature fluctuations are relatively small in Jameson city because takes water longer to heat up and cool down due to its high specific heat capacity because water has high heat capacity that is it absorb alot of heat before it start to get hot. takes more energy to increase the temperature of water compared to other substances which help to regulate extremes in the environment.
Water surrounding cities take longer to heat up and longer to cool down so cities that are near the oceans will tend to have less change and less extreme temperatures compared to inland cities.
Answer:
I believe it's (water and specific heat) let me know if this is correct :)
what are the functions of protein
Answer:
Explanation:
7 Important Functions of Protein in Your Body
Causes Biochemical Reactions. ...
Acts as a Messenger. ...
Provides Structure. ...
Maintains Proper pH. ...
Balances Fluids. ...
Bolsters Immune Health. ...
Transports and Stores Nutrients.
• Which category of energy interested you the most? Choose from one of the following: fossil fuels, nuclear energy, biomass, hydropower, solar energy, geothermal energy, or wind energy.
Answer:
nuclear energy
Explanation:
coz nuclear energy are awesome
Im interested in solar energy.
The career area that is interesting is pure research into new science.
How does a scientist use solar energy in pure research to develop new ways in science?
What is pure research?
How can a scientist get solar energy?
What does a scientist do in pure research?
When do scientist know they found a new way?
How can they propose the new way of science?
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