Help ASAP. My answers my or may not be right. It is deadly windows assignment

How many species of living things are alive on earth today? more than 1,000,000 none of these answers are correct 100-500 1,000 –500,000 o 500,000 -1,000,000

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

What macromolecule is produced during translation? a. carbohydrate b. rna c. dna d. protein