Answer:
B
Explanation:
Integumentary system is skin, hair, nails, glands.
Answer:
E
Explanation:
Personally, I think the answer E is correct. Because the sum of percentage of ABCD is 100%.
Answer:
they have big effects; it usually affects cells, tissues, and systems other than the target cells
Explanation:
If you are really sad and feel exhasted all the time. You don;t feel good enough for life. Sometimes you lose the will to live to do anything. You want to give up among a number of other things.
