Which of the following designates a normal human

male?
a. YY
b. XX
c. XY
d. XO
e. XYY


Answer: c

Biology & Microbiology

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Many marine and freshwater bony fish achieve osmoregulation via _____

A) loss of water through the gills B) gain of salt through the gills C) loss of water in the urine D) no drinking of water E) gain of water through food

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The deuterostomes are animals whose

a. stomach is in front of the crop. b. mouth is covered by a fleshy lip. c. blastopore becomes the anus. d. digestive tract is lined by mesoderm.

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Alcohol acts predominantly as a(n)

a. stimulant. b. analgesic. c. hallucinogen. d. depressant. e. anesthetic.

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Chondroblasts produce ________

Fill in the blank(s) with correct word

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