<span>Answer: Cellular differentiation is responsible for one daughter cell becoming a sieve tube whereas the other becomes a companion cell. Cell differentiation occurs as different genes are switched on and off.
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Answer:a
Explanation: because naturally it occurs anytime it wants to
Answer:
450 kilocalories.
Explanation:
Since only 1/10th of the energy that an organism consumes is passed onto the next level of the pyramid, that would mean only 500/10 = 50 kilocalories are passed on, and the remaining 500 - 50 = 450 kilocalories are used up.
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Answer:
they are found in all amino acids
Answer:
i only have #1 but it is mainly because of chemicals and an increase of moths themselves
Explanation:
