6. a ligand will cause a cell to respond if it connects with the right _ the right o phospholipid o receptor o enzyme o active site

What factors contribute to the effect an environmental toxin has on the human body?

Identify the structure in organisms that do not have kidneys that is adapted to regulate water balance

Urban areas use energy than rural areas, mostly because so many more people live there. a) solar power b) more; in total c) less; in total d) an electric furnace