Sophia’s doctor suspects she’s been using marijuana for a long period of time. Which set of symptoms best describes what Sophia’s doctor observes? A. Sophia exhibits impaired memory and learning.
B. Sophia is hoarse and malnourished with nosebleeds.
C. Sophia complains of itching, nausea, and a racing heart.
D. Sophia has severe dental problems, anxiety, and a sleep disorder.

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.