What is it called when a sound wave is slowed by a new medium that it is passing through? A. transmission
B. sonar
C. absorption
D. echo
(The class is science)

What is the slope of the line shown below? (1,7(3,5)t- 10+ hh-ttetoiliemma asat 9t0elp00od-1

Which two levels of the spine that can undergo flexion and extension?

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.