40. A clam closes its shell when it is removed from its watery environment. Why does the clam behave in this way?
41. What is the difference between an electron microscope and a compound microscope?
42. How is ATP obtained from aerobic processes?
43. How does meiosis maintain a constant number of chromosomes in the body cells of organisms that reproduce sexually?
41. What is the difference between an electron microscope and a compound microscope?
42. How is ATP obtained from aerobic processes?
43. How does meiosis maintain a constant number of chromosomes in the body cells of organisms that reproduce sexually?