Which Statement Regarding Animals Is True

question 18

Multiple Choice

Which statement regarding animals is true?

• A) There is no distinction between an animal and its environment.
• B) Once adults, animals are structurally static.
• C) All animals require energy to maintain their organization.
• D) Body size is significant in the lives of only small animals.

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Definitions:

Pulmonary Circuit

The pathway by which blood travels from the heart to the lungs to be oxygenated and then back to the heart.

Systemic Circuit

The part of the cardiovascular system that carries oxygenated blood away from the heart to the body and returns deoxygenated blood back to the heart.

AV Valves

Atrioventricular valves are valves in the heart that lie between the atria and the ventricles to prevent the backflow of blood during ventricular contraction.

Papillary Muscles

Muscular projections from the ventricular walls of the heart that attach to the cusps of the atrioventricular valves via the chordae tendineae and prevent valve inversion.