Answer:
The answer would be A it connects the endocrine and nervous systems and controls the pituitary gland.
Hope this helped, Really need that brainliest
*Befri.stends
Explanation:
Four unifying principles form the foundation of modern biology<span>: cell theory, evolutionary theory, the gene theory and the </span>principle<span> of homeostasis. These </span>four principles<span> are the founding principles of each category of biology</span>
1. Exchange materials with its environment efficently
Observation– the process of using the five senses to gather information.