__________ Occurs When One Species Benefits While Another Species Is

question 19

Multiple Choice

__________ occurs when one species benefits while another species is harmed,while __________ is when one species benefits while another species is unharmed.

• A) Mutualism; commensalism
• B) Commensalism; mutualism
• C) Commensalism; parasitism
• D) Parasitism; commensalism
• E) Parasitism; mutualism

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Definitions:

Parathyroid Hormone

A hormone produced by the parathyroid glands that helps regulate calcium levels in the blood.

Serum

Fluid portion of blood after the removal of fibrin and blood cells.

Muscle Contraction

The shortening and/or development of tension within a muscle, allowing for movement and force generation.

Blood Clotting

The process by which blood changes from a liquid to a gel, forming a clot to stop bleeding.