The amount of melatonin secreted by the pineal gland is regulated by
A. the stress response.
B. blood glucose levels.
C. a person's individual metabolic rate.
D. the amount of sleep a person gets.
E. the photoperiod (the daily amount of daylight).
Answer: E. the photoperiod (the daily amount of daylight).
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In adults, red blood cells are made in one place, spend most of their lifespan in another, and most are finally destroyed in yet another place. Which choice lists these locations in the correct chronological order?
A. bone marrow; blood vessels; spleen B. bone marrow; spleen; blood vessels C. spleen; blood vessels; spleen D. blood vessels; spleen; bone marrow E. spleen; blood vessels; bone marrow
Which of the following helps the core temperature to increase?
a) Constriction of blood vessels of the skin. b) Increase in cellular respiration. c) Shivering. d) Thyroid hormone induced increase in metabolic rate. e) All of these are methods for core temperature increase.
The three masses of erectile tissue that compose the body of the penis are __________.
a. two slender corpora spongiosa and a cylindrical corpus cavernosum b. two corpora cavernosa and preputial gland c. two cylindrical corpora cavernosa and a slender corpus spongiosum d. periputial glands, a corpus cavernosum, and a corpus spongiosum
Ingredients are listed on a pet food label starting with the lowest inclusion ingredient
Indicate whether the statement is true or false