Answer:
The correct answer is option C. secrete chemical messengers that travel in the bloodstream.
Explanation:
Endocrine glands are organ or gland that secrets hormones that are chemical messengers travel through the bloodstream instead of the duct. There are several glands that are part of the endocrine system such as the thyroid gland, pancreas, hypothalamus, and others.
These chemical agents are the travel through the blood and act on the site of action.
Thus, the correct answer is option C. secrete chemical messengers that travel in the bloodstream.
Yeah, I do t sometimes. I don't think theres anything wrong with it lol
Answer:all of the above is the correct answer
Explanation: trust me
"The plate tectonics theory suggests that the outer shell of the earth's surface is split into a few plates that move along the mantle, forming a hard shell, with pressure from mid-ocean ridges and subduction zones causing the shifting in the plates."
