How do polar bears maintain homeostasis in freezing cold weather? (1 point)

Question

Responses

Their metabolism slows down to preserve heat.
Their metabolism slows down to preserve heat.

They hibernate in warm areas in order to heat their bodies.
They hibernate in warm areas in order to heat their bodies.

Their thick fur retains heat.
Their thick fur retains heat.

Their metabolism speeds up to produce heat.

Answer 1

Their thick layer of blubber insulates their bodies and retains heat.

Answer 2

Which example shows an organism that cannot reach homeostasis through internal changes? (1 point)
Responses

A dog shivers when it is too cold.
A dog shivers when it is too cold.

Circulation decreases in a bird when it becomes too warm.
Circulation decreases in a bird when it becomes too warm.

A person gets a fever in response to a flu infection.
A person gets a fever in response to a flu infection.

A lizard is cold, and it moves to a sunny rock to warm up.

Answer 3

A lizard is cold, and it moves to a sunny rock to warm up.

Answer 4

How is homeostasis achieved?(1 point)
Responses

Cells maintain internal stability.
Cells maintain internal stability.

Cells secrete stomach enzymes.
Cells secrete stomach enzymes.

Cells control involuntary movements.
Cells control involuntary movements.

Cells control voluntary movements.

Answer 5

Cells maintain internal stability.