When an action potential reaches the axon terminal of a neuron, it triggers the release of chemical messengers called?

When analyzing tree rings, what do scientists assume a thin ring indicates?

Study the picture of the ocean. which is the best example of an organism’s niche shown in the picture? a. the environment contains several of the same species of coral. b. the shallow area of the ocean meets the needs of the coral and the fish. c. the ocean has fish and coral that live in the same area. d. the coral take in food from the water and provide shelter for the fish.

Which u.s. state lists the horned toad as its state reptile?