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yaroslaw [1]
3 years ago
14

Does evolution say blacks are subhumans? 3/4th human?

Biology
1 answer:
xenn [34]3 years ago
4 0
No blacks are 100% human.. people are black because of the pigments in your skin. That is why we have light skins and dark skins not because light skins are more human than dark skins.
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consists of solid rock

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A scientist is using a species of green algae to study the electron transport chain in photosynthesis. He uses a laser to inacti
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D) In case 1, both PS I and PS II completely lose function; in case 2, a proton gradient is still produced.

Explanation:

The light dependent reaction of photosynthesis, which produces the ATP and NADPH needed in the light independent stage of the process, includes complexes of proteins and pigments called PHOTOSYSTEMS. These photosystems (I and II) are key to the functionality of the light dependent reactions in the thylakoid.

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In case 2, if PS I is inhibited and PS II is unaffected, a PROTON GRADIENT WILL STILL BE PRODUCED because the splitting of water into protons (H+) and electrons (e-) occurs in PSII. Hence, H+ ions can still be pumped into the inner membrane of the thylakoid in order to build a proton gradient even without the occurrence of PS I.

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