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Levart [38]
3 years ago
14

Which of the following is not a step of Natural Selection?

Biology
1 answer:
kati45 [8]3 years ago
6 0

Answer:

im pretty sure it is underpopulation.

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What is the name of this organelle?
harkovskaia [24]
Its would be called a chloroplast, vacaole, search different types of organelles

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4 years ago
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Don and ellie are trying to conceive a baby. How long should they wait before they suspect infertility?
hammer [34]

Answer:

They are to wait for at least one year.

Explanation:

Infertility maybe defined as trying to get pregnant without success despite having frequent sexual intercourse for a period of at least one year.

7 0
3 years ago
What factor does not contribute to "water stress" on the Earth?
kotegsom [21]

Precipitation differences are the factor that does not contribute to "water stress" on the Earth.

<u>Explanation:</u>

  • Less ocean water sources, population differences, Scarcity of economic water resources are the factor which leads to water stress on the Earth.
  • Precipitation differences do not cause much difference in water stress. So it will not contribute to the water stress.
  • An increase in population will cause major water stress because availability drinking water is less in the earth. Population increase can cause a major problem.
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3 years ago
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Which part of the cell is affected by the movement of molecules through diffusion, osmosis and active transport?
kolezko [41]

Ans.

Diffusion, osmosis, and active transport are mechanism of cellular transport that involves movement of molecules through plasma membrane. Diffusion shows movement of small, hydrophobic particles without the help of protein molecules through cell membrane along the concentration gradient.

Osmosis involves movement of water molecules against concentration gradient (from an area of high solvent concentration to an area of low solvent concentration) through cell membrane.

Active transport shows movement of particles, against the concentration gradient, means from a region of higher to lower concentration of molecules through cell membrane. It involves transport through membrane proteins.

Thus, the part of cell, which is affected by the movement of molecules through osmosis, diffusion, and active transport is cell membrane or plasma membrane.

7 0
3 years ago
Which of the following is the coenzyme that functions as an electron carrier in photosynthesis?
faltersainse [42]

Answer:

The correct answer is C. NADP⁺

Explanation:

NADP+ is the coenzyme that acts as the electron carrier during the photosynthetic process. The electron that is released from the splitting of water pass through the electron transport chain and at the end of the chain the electron is received by an electron carrier called NADP+.  

So this passing of electron causes the transport of H ions in the thylakoid lumen from the stroma and when these ions come back through ATP synthase it forms ATP. Then these NADPH and ATP are used in the Calvin cycle to fix the CO2 into complex form. Therefore the correct answer is C. NADP⁺.

8 0
4 years ago
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