Which of the below is an example of homeostasis? * Your heart rate and breathing rate increase after doing 50 jumping jacks.
Your hands get really cold after touching cold water.
Your body is not able to make insulin.

B. Your hands get really cold after touching cold water.

Explanation:

Homeostasis is a process in the human body that helps to maintain a stable environment internally. The word homeostasis is derived from the combination of two Greek words home meaning 'similar,' and stasis, which means 'stable.'

This process regulates body temperature, chemical levels in the body, and ratios of water and minerals.

An example of homeostatic, from the given options, would be, your hands getting cold after touching cold water. It is because there is a change in body temperature, internally due to an external change in temperature.

Therefore, option B is correct.

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."