Answer:
differentiate and/or the embryo has doubled its size. Aging results in a gradual decline in female fertility.
Explanation:
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Answer:
A & B
Explanation:
Leucine and phenylalanine have hydrophobic side chains, which means that they can interact with valine in the pocket. All other aminoacids on the list have polar (two electrically charged) side chains and cannot form hydrophobic pockets.
The variation may already exist within the population, but often the variation comes from a mutation, or a random change in an organism's genes.
Answer: They store energy because they may need it for winter. Take pine trees for example. They are fine through the winter because they have stored enough energy to keep their leaves. this works with regular trees to. The reason why trees don’t die in winter is because they store energy to last.
Explanation: Plants can’t use photosynthesis without light
