Answer:
Limbic System
Explanation:
The limbic system of the brain is responsible for behavioral and emotional responses.
A Tree or a living thing. AS apposed to abiotic, meaning nonliving.
ex. a rock.
An hypothesis is an educated guess whereas a theory has supporting evidence to help prove the point to be correct. (I THINK this is right)
Answer:
2.1 located between the left atrium and the left ventricle (left atrioventricular orifice).
2.2 it helps to prevent blood from flowing backward as it moves through the heart.