Subject: Anatomy and Physiology

#209

Homeostasis is critical for:

A) Cellular reproduction

B) Survival of organisms

C) DNA replication

D) Muscle hypertrophy

Answer:   B

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#210

Which organ is key to fluid balance?

A) Lungs

B) Kidneys

C) Stomach

D) Skin

Answer:   B

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#211

The term "set point" in homeostasis refers to:

A) A fixed value

B) The ideal target value

C) A random value

D) An external stimulus

Answer:   B

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#212

Which condition is homeostatically regulated?

A) Hair color

B) Blood pH

C) Bone density

D) Nail growth

Answer:   B

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#213

What happens if body temperature rises above 37°C?

A) Shivering begins

B) Sweating increases

C) Blood vessels constrict

D) Metabolism slows

Answer:   B

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#214

Which is an example of behavioral homeostasis?

A) Insulin secretion

B) Seeking shade in heat

C) Blood clotting

D) Kidney filtration

Answer:   B

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#215

What is a negative feedback loop?

A) Amplifies changes

B) Reverses changes

C) Ignores stimuli

D) Causes disease

Answer:   B

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#216

Which is a positive feedback example?

A) Blood sugar regulation

B) Childbirth contractions

C) Body temperature control

D) Calcium homeostasis

Answer:   B

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