7. Explain why graph D levels off. Use enzyme and substrate in your explanation. Then tell how you could prevent graph
D from leveling off.
8. Why doesn't it matter if enzymes keep getting added to
graph E? What would it take to increase the rate of enzyme
activity?

i think its control and coordinate because im pretty sure thats what tissue does and the joints are what control movement and then your skeletal/ bones provides portection. hope that .

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).