Answer:
I think it is A
Explanation:
The other ones appear to be all true. And they would not be able to know if Raptors had feathers if fossils only formed from the hard part of the animal.
Answer:
Fats: fatty acids and glycerol
Protein: amino acids
Answer:
NA+ gates open and flow into the Sarcolemma of the muscle fiber.
We de-starch leaves so as to remove the starch produced in it during photosynthesis stored as food. Removing the starch would help us to infer our observations clearly as there is no change or substance that would effect the experiment we want to carry out. For example , the indicators we use might give blue-black or green colors just because of the presence or absence of starch.