Organisms Maintain Dynamic Homeostasis Through Behavioral and Physiological Mechanisms

question 33

Multiple Choice

Organisms maintain dynamic homeostasis through behavioral and physiological mechanisms. Which of the following statements is an accurate explanation of a negative feedback mechanism used by animals to regulate body temperature?

• A) Squirrels are able to cool themselves during warmer months by producing more brown fat, which contains abundant mitochondria and a rich blood supply.
• B) Desert jackrabbits have unusually large ears that serve as solar heat collectors to enable them to maintain their body temperatures.
• C) A ground squirrel's hypothalamus detects changes in environmental temperatures and responds by activating or suppressing metabolic heat production.
• D) A goldfish slows its movements when the water temperature is lower.

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Definitions:

Illness

A condition of poor health perceived or felt by an individual, often characterized by disease or ailment.

Imaginary Audience

Type of thought common to adolescents in which young people believe that other people are just as concerned about the adolescent’s thoughts and characteristics as they themselves are.

Personal Fable

Type of thought common to adolescents in which young people believe themselves to be unique and protected from harm.

Imaginary Audience

A social psychological concept where an individual imagines and believes that multitudes of people are enthusiastically listening or watching them.