Chemical signals that influence neuronal functionality in widespread areas rather than at isolated synapses are called

Stephen is a student who wants to test his knowledge of medical terminology. which option could he use?

How do the sperm cells get from the stigma to the ovules? a. they slide down the petals to the bottom of the flower. b. they travel through pollen tubes. c. they travel along filaments. d. insects carry the sperm cells from the stigma to the ovules.

What is the difference between a meteoroid and a meteor?