The production of melanin is dependent on environmental exposure. Which of the following activities would trigger the production of melanin?
A) sunbathing while on vacation in the Caribbean
B) walking outside on a rainy, overcast day
C) hanging out with friends while watching movies
D) swimming in an indoor pool
A
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Diabetes insipidus is caused by
A. ADH deficiency. B. excess ADH. C. excess insulin. D. insulin deficiency.
__________ is the hormone antagonist of insulin
Fill in the blank with the correct word.
Matching
A) Neural stimulus B) Hormonal stimulus C) Humoral stimulus 31) Testosterone production. 32) Epinephrine production. 33) Aldosterone production. 34) Parathyroid hormone production.
A young man who ran 6 miles a day throughout high school is injured during his first
season running cross country in college, and must rest for three months, then gradually begin exercising again. The skeletal muscles in his lower limbs decrease in size during this prolonged period of inactivity. The organelles that break down his muscle protein are A) ribosomes. B) lysosomes. C) centrosomes. D) peroxisomes.