Use the word sperm egg and zygote in one sentence that's not from any website mark brainlist

Which of the following will not cause mass extinction? a. drastic change is weather b. geological change c. both a and b d. none of the above

This organism is not capable of performing photosynthesis. (horseshoe crab) true false

All but one describes an effect of aging on the digestive system. a) decreased acid secretion b) decreased elasticity of stomach c) capacity to resist damage decreases d) food remains in stomach for less time