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:

Negative Symptom

Negative symptoms are characterized by deficits or decreases in normal emotional responses or thought processes, often seen in conditions like schizophrenia.

Schizophrenia

A mental disorder characterized by distorted thinking, perceptions, emotions, language, sense of self, and behavior.

Paranoid Schizophrenia

A form of schizophrenia distinguished by significant delusions or hearing voices, with cognitive abilities and emotional response largely intact.

Catatonic Schizophrenia

is a subtype of schizophrenia characterized by abnormalities in motor behavior which can include extreme physical immobility or excessive, pointless movements.