Sperm production occurs in the
A) ductus deferens.
B) seminiferous tubules.
C) epididymis.
D) seminal vesicles.
E) rete testis.
B) seminiferous tubules.
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An enzyme that adds or subtracts water molecules is a
A) transferase. B) hydrolase. C) kinase. D) lipase. E) ligase.
Cells from a woman with Turner syndrome have
A) only one X chromosome. B) one X and two Y chromosomes. C) no sex chromosomes. D) an extra X chromosome.
The function of the atrium is to
A) collect blood. B) pump blood to the lungs. C) pump blood into the systemic circuit. D) pump blood to the ventricle. E) collect blood and pump blood to the ventricle.
The oil of your scalp is secreted by ________ glands associated with the hair follicles.
A. sebaceous B. apocrine sweat C. eccrine sweat D. ceruminous E. merocrine sweat