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
Biology & Microbiology
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.
Biology & Microbiology
Alcohol acts predominantly as a(n)
a. stimulant. b. analgesic. c. hallucinogen. d. depressant. e. anesthetic.
Biology & Microbiology
Chondroblasts produce ________
Fill in the blank(s) with correct word
Biology & Microbiology