Nucleic acids. They contain a phosphate base and a nitrogen group.
A gene pool changes throughout evolution this could be natural selection, genetic drift or a mutation. A gene pool does this to adapt with the needs of the environment it is in
The answer is <span>fuel with less emissions because it would help to reduce the pollution in the atmosphere.</span>
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.