Answer:
Dissolved or gaseous substances have to pass through the cell membrane to get into or out of a cell. Diffusion occurs when particles spread. ... They move from a region where they are in high concentration to a region where they are in low concentration.
Explanation:
Mark me as brainliest and follow me
Answer: B. Rainforest
Explanation:
Because rainforests have huge canopies of trees, it is significantly harder for the plants below them to get sunlight.
Polypeptide is a sequence of amino acids