D -<span>the start of glaciation and climatic changes</span>
Answer:
You use the metric system
Explanation:
Its used all around the world and what is supposed to be used for scientific results.
1) receptor proteins need to b on the outside of a cell so the cell can absorb the nutrients it needs. receptors have a specific job, membranes are semi-permeable meaning it doesn't absorb nutrients that are not needed 4 a cell to function in a healthy individual.
2) water and glucose are what most cells need to produce energy to function and produce ATP, which allows the bloodstream to deliver nutrients to the entire body.
Because they are able to take in light from all points of the plant plus it uses sugar well
E. sperm cells, because the process of meiosis is of sexual reproduction so sperm cells and eggs are needed in order for reproduction.
