<span>Mesozoic Era is the anwser</span>
Most of the cells are made of mostly Cytoplasm. It contains all the living materials in a cell except for the nucleus. This gel-like area of the cell contains the chemical needed by the cell it resembles the white part of a raw egg.
Hope this helps ^^!
The two ways the endocrine system and the nervous system are different in communication, is that the nervous system responds rapidly to short-term changes in the body by sending electrical impulses. And with the endocrine system, it takes longer, so it's a long-term effect until it notices any changes and when it does, it sends chemical messengers known as hormones into the body.
Now, how they are similar, is because both the nervous and endocrine systems work together to maintain homeostasis.