What Is a Social Group

question 19

Multiple Choice

What is a social group?

• A)Individuals that are always together.
• B)Individuals that affect each other's fitness.
• C)A group that forages together.
• D)A group that shares communal raising of offspring.

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Definitions:

Mitral Valve

A valve in the heart that lies between the left atrium and left ventricle, ensuring one-directional blood flow within the heart.

Atria Contracting

The phase of the cardiac cycle where the atria of the heart contract to move blood into the ventricles.

Ejection

The process of forcibly expelling something, as in the ejection of blood from the heart during systole.

Ventricles

Chambers of the heart that receive blood from the atria and pump it out of the heart to the lungs and the rest of the body.