Question

what types of feedback loop do we use to maintain our temperature?
○ heartbeat, changes in blood vessel girth and bile production.
○ sweat, changes in blood vessel girth and muscle movement.
○ sweat, glucose levels and digestion speed.
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Explanation:

To maintain body temperature, sweat (cools), blood vessel girth changes (regulate heat loss/gain), and muscle movement (shivering for heat) are feedback mechanisms. Other options include unrelated processes (bile, glucose, digestion).

Answer:

B. Sweat, changes in blood vessel girth and muscle movement.