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Maksim231197 [3]
1 year ago
10

Which one of the following characteristics shows discontinuous variation in humans?

Biology
1 answer:
gayaneshka [121]1 year ago
8 0

Answer:

D. Tongue rolling

Explanation:

Not many people can do this

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Which of the following involves only biotic factors?
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C- a duck catching and eating a snail

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Biotic factors involve living things. The only choice with two living beings interacts would be C.

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3 years ago
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Why does the reduction of the dye DCPIP work best using the chloroplasts whose outer envelopes have been damaged during preparat
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These electrons for the ETC chains, generates the PMF for pumping H+ as protrons into the thylakoid  intramembranes.

Outer membrane covers  the intramembrane space, between these two membranes layers. The protons in the intramembrane space generate the electrochemical gradient for the supply of  the energy used by ATPase synthase for ATP synthesis from phosphorylation with ADP.

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Therefore with the outer envelope removed, the intramembrane is exposed,more protons(H+) are released, but can not be held in the outer envelope to form electrochemical gradients,beacause the intramembrane space is now permable.

Thus   the rate of reduction of DCPIP is faster.The  color changes to colorless increases when reduced , from blue color.

Explanation:

7 0
2 years ago
Compare and contrast Meiosis and Mitosis, how are they similar and how are they different?
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Cells divide and reproduce in two ways, mitosis and meiosis. Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells.

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Which farming practice causes the least harm to
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