Sperm cannot fertilize an egg until what has occurred?
A. They lose their midpiece.
B. Their plasma membrane is toughened by cholesterol.
C. They are in the vagina for 72 hours.
D. They undergo acromegaly.
E. They undergo capacitation.
Answer: E
You might also like to view...
How do cardiac muscle fibers differ from the muscle fibers of the arms and legs?
A) Routine involuntary movement B) Longer muscle fibers than the limbs C) Poorer supply of blood than the limbs D) Non-striated fibers rather than striated fibers
The lethargic dog with diarrhea had an exploratory __________ performed to determine the cause of his intestinal discomfort
Fill in the blank(s) with correct word
The sense of body position is
a. somatosensory b. integrated in the frontal lobe c. proprioception d. integrated in the occipital lobe e. none of the above
The lungs are housed in which of the following anatomical regions?
A. Axial B. Appendicular C. Abdominal D. Axillary