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

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.

his research revealed two genetically different groups of prokaryotes, which justified splitting kingdom monera into two kingdoms. the genetic and cellular differences were so great, that these two kingdoms were eventually placed into different domains in the current three-domain system.