What are man-made substances that prevent certain diseases called?

Which characteristic do healthy families have in common? a. having above average household income b. ignoring one another’s happiness c. demonstrating love for oneself d. communicating with one another

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.

Some infants in poorer households are not fed this important food for all babies. what is it? a. baby food b. breast milk or infant formula c. water. d. all of the choices are correct