What is the difference between an intron and a exon

Regarding most of the narrator’s story, which word best describes the tone?

Explain why the plants cortex would serve as the best food source for animals

Which part of the neuron below is indicated by the arrow, and what is its function? hormones send chemical signals throughout the body to regulate other body processes. hormones are chemical signals that are sent throughout the body to regulate other body processes. hormones send electrical signals throughout the body to regulate other body processes. hormones are electrical signals that are sent throughout the body to regulate other body processes.