Use the Model of Circulation in the Leg of a Canada

question 8

Multiple Choice

Use the model of circulation in the leg of a Canada goose to answer the following question. The countercurrent arrangement of blood vessels is an adaptation that allows the goose to ________.

• A) minimize heat exchange between the feet and water
• B) generate heat using shivering thermogenesis
• C) more effectively cool off the goose in the summer
• D) conserve heat in the goose's core when the goose is swimming in cold water

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Definitions:

Morphine

A potent opiate analgesic drug derived from the opium poppy, used to treat severe pain.

Codeine

An opiate used to treat pain, as a cough suppressant, or occasionally in the treatment of diarrhea.

Neurotransmission

The process by which nerve cells (neurons) communicate with each other through the exchange of chemical messengers called neurotransmitters.

Amplitude

The height of a wave crest, used (in the case of sound waves) as a measure of sound intensity.