Many insects, fish, and mammals release certain chemical messengers to signal reproductive readiness. what are these messengers called? select one of the options below as your a. hormones b. pheromones c. enzymes

What are two reasons for why a species might disappear from the fossil record?

Many plants can reproduce asexually. which of these is an example of asexual reproduction in a plant? a. pine cones forming on a tree b. cross-pollination in a tomato c. roots sprouting from a potato d. night-blooming jasmine flowers

Asolution containing hci would likely have