Which of these is an inclusion, not an organelle?
A) melanin
B) lysosome
C) microtubule
D) cilia
A) melanin
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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).
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.
What does thyrotropin-releasing hormone (TRH) target?
A) hypothalamus B) thyroid gland C) posterior pituitary (neurohypophysis) D) anterior pituitary (adenohypophysis)
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.