What is the body's first line of defense against infection?
a. the heart
b. the lungs
c. the skin
d. the spleen

As you sit in the library with your friend studying for your weekly quiz on the integumentary system, you come upon an article about the hazards of prolonged exposure to the sun's rays. your curious nature leads you to research the subject further. you're fascinated to learn that minimal exposure to the sun allows you skin to manufacture vitamin d, which is important to maintain homeostasis. you also read that although sunscreen can protect you from the ultraviolet (uv) rays of the sun, some medications can actually increase a person's sensitivity to the sunlight.

Ay i hate cuz my peepee be small

Will give brainlistas you age and your body changes, your bmi will remain the same will increase will decrease will also change