Barnacles on the Bellies of Whales or on the Shells

question 84

Multiple Choice

Barnacles on the bellies of whales or on the shells of mollusks are examples of:

• A)mutualism.
• B)predation.
• C)commensalism.
• D)amensalism.
• E)parasitism.

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Definitions:

Rapid Eye Movement (REM)

A stage of sleep characterized by fast and random movement of the eyes, high brain activity, increased heart rate and breathing, and vivid dreams.

Non-REM Sleep

A period of sleep characterized by slower brain waves and the absence of rapid eye movements, involving various stages of depth.

Non-REM Dreams

Dreams that occur during non-rapid eye movement stages of sleep, typically less vivid than dreams during REM sleep.

Abdominal Pain

Discomfort or pain located between the chest and pelvic regions, sometimes indicating a serious condition.