If u mean the endocrine system .The endocrine system is the collection of glands of an organism that secrete hormones directly into the circulatory system to be carried towards distant target organs.
I’m pretty sure it’s the second period. I think that’s when most of the development happens
A and D, hope this helps :)
So first of all i need to know what it the thing they are asking that would influence the person? What is the action? Based on you're comment below I will then comment back with the answer, Thank You
