(Q).
Q: Sounds or pictures can be encoded in pulses of what, which are then sent through an optical fiber? Choices: - kinetic energy - microwaves - quasars - laser light A:
(A).
laser light

(Q).
Q: During adulthood, what is needed for the production of sperm? Choices: - steroids - estrogen - androgen - testosterone A:
(A).
testosterone

(Q).
Q: Dense connective tissue contains more collagen fibers than does loose connective tissue. as a consequence, it displays greater resistance to what? Choices: - freezing - contracting - stiffening - stretching A:
(A).
stretching