Answer:
2
Explanation:
because the frequency is how much energy it has and 2 has the most frequency.
Answer:
The glands that secrete their products into the bloodstream and body tissues along with the central nervous system to control and regulate many kinds of body functions are known as endocrine gland. In fishes various endocrine gland has been found associated with different tasks and functions.
Explanation:
hope this was the answer you where looking for
They must contain nucleus
