Which of these is an inclusion, not an organelle?
A) melanin
B) lysosome
C) microtubule
D) cilia
A) melanin
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During periods of activity, when the heart rate is rapid, the mean arterial pressure in humans is
A) 2/3 diastolic pressure and 1/3 systolic pressure. B) 1/3 diastolic pressure and 2/3 systolic pressure. C) 1/2 diastolic pressure and 1/2 systolic pressure. D) Approximately equal to systolic pressure.
In the classification of joints, which of the following is true?
A) In cartilaginous joints, a joint cavity is present. B) All synovial joints are freely movable. C) Synarthrotic joints are slightly movable. D) Immovable joints are called amphiarthroses.
The aorta is an example of a(n) ________ artery, the largest arteries in the body.
Fill in the blank(s) with the appropriate word(s).
What does thyrotropin-releasing hormone (TRH) target?
A) hypothalamus B) thyroid gland C) posterior pituitary (neurohypophysis) D) anterior pituitary (adenohypophysis)