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4 January, 21:00

Jackrabbit

The jackrabbit is a desert mammal. The jackrabbit's

circulatory system increases blood flow to the ears

during hot days. The blood flow to the ears decreases

during cool or cold nights. This circulation pattern is

most directly related to

A detoxification

B excretion

O Cosmosis

D homeostasis

OSE

CHO

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Answers (1)
  1. 4 January, 22:35
    0
    Hello!

    The answer is D) Homeostasis

    Explanation:

    Homeostasis:

    The regulation of a cell or an animal's internal environment in response to fluctuations in the external environment is called homeostasis.

    Homeostasis is crucial to maintain an optimum environment for cell structures to work effectively.

    In this case, the jackrabbiit's circulatory system is responding to fluctuating temperatures. In hot days, the body is at risk of heating up above optimum temperature which could hamper body functions. Therefore, the blood flow to the ears is increased to facilitate heat loss.

    In cold temperatures, the blood flow to the ears is decreased to conserve heat for vital body organs. The blood flow is directed to the core of the body to protect the heart, lungs, liver and brain.
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