Cougars Prey on Both White-Tailed Deer and Mule Deer

question 50

Multiple Choice

Cougars prey on both white-tailed deer and mule deer. Because of their shared predator, each deer's species abundance is affected by the presence of the other deer species. The cougar and the mule deer are engaged in a(n)

• A) direct interaction.
• B) indirect interaction.
• C) trophic facilitation.
• D) trophic cascade.

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Definitions:

Autoimmune Disease

A condition in which the immune system mistakenly attacks and damages the body's own tissues.

Body Fluids

Liquids produced by the body, such as blood, saliva, and urine, that maintain bodily functions and protect against infection.

Major Proteins

Essential, large molecules made up of amino acids that play critical roles in the body's structure, function, and regulation of tissues and organs.

Macrophages

A type of white blood cell that engulfs and digests cellular debris, foreign substances, microbes, and cancer cells in a process called phagocytosis.