The system guard against infection, protect from uv radiation, and regulate body temperature?
a. integumentary
b. endocrine
c. immune
d. circulatory

Explain why some cells in a females body respond to reproductive hormones while other cells do not.

What is the longest you should ice the injured area at one time? a. 10-20 minutes b. 30-60 minutes c. 1-2 hours d. as long as you want

For years, tobacco products have included a message from the surgeon general warning the negative effects of tobacco use. at this time, a push is being made for the fda to begin to regulate e-cigarettes in order to mandate warning labels and age restrictions. write a paragraph that identifies 2 health problems that have been linked to nicotine and/or tobacco use. you should include statistics demonstrating the incidence of problems among smokers and provide a resource citing where you found the information provided. (remember from unit 1 what makes a resource reliable.) due in 2