Answer:
Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane.
Explanation:
Answer:
Animals store some energy as a more stable complex of many glucose molecules called glycogen. Animals also store some energy as fat, which has more energy for its weight than starches, and therefore is easier to carry around. Energy is broken down from its stored forms into glucose to be transported through the body.
Answer:
I believe the answer you're looking for is B. Normal
Explanation:
I believe its two and four
