What is the name of the area where bones meet and interact?
a. joint
b. ligament
c. osteoblast
d. bony matrix
e. connective tissue
ANSWER: a
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Which of the following filariases are transmitted by insect vectors?
A) elephantiasis B) river blindness C) trichinosis D) elephantiasis and river blindness
The accumulation of free oxygen in the atmosphere
a. was a result of the accumulation of a by-product of a type of photosynthesis. b. prevented the further spontaneous generation of life. c. provided the opportunity to extract more energy through aerobic respiration. d. did not occur immediately after the earth was formed. e. did all of these.
Which muscle cells are designed for endurance?
A) slow-twitch cells B) fast-twitch cells C) myoglobin D) hemoglobin
Which of the following is NOT an example of a chemical mutagen?
a. intercalating agent b. alkylating agent c. heteroduplex agent d. base analog