(PLZ help me ill give brainiest) Which of the following explains why anatomy and physiology are closely related?

A. Biological systems are organized in a hierarchical manner.
B. These disciplines have implications in diverse medical and scientific fields.
C. Humans are complex living beings, with multiple organ systems required for human life.
D. Structure and function are interdependent.

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.