Which ocean basin is subjected to monsoons?
a. Atlantic
b. Pacific
c. Arctic
d. Indian
e. Southern
ANSWER: d
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Ribbon worms belong to the phylum:
a. Nemertea. b. Platyhelminthes. c. Arthropoda. d. Ctenophora. e. Cnidaria.
A unique feature of the diaphragm is that it is_____
a. the only smooth muscle in the human body b. the only smooth muscle that can be voluntarily controlled c. only found in humans d. the only skeletal muscle that is under involuntary control e. easily replaceable
A 6-year-old boy was diagnosed with purulent conjunctivitis caused by a species of Haemophilus. What would the biochemical profile of the organism be?
a. Growth requirements require both X and V factors; the organism is hemolytic on rabbit blood. b. Growth requirements require both X and V factors; the organism is nonhemolytic on rabbit blood. c. Growth requirements require V factor; the organism is hemolytic on rabbit blood. d. Growth requirements require X factor; the organism is nonhemolytic on rabbit blood.
Mucus traps pathogens that are later coughed or sneezed away. What form of body defense applies to this example?
A) first line of defense
B) second line of defense
C) third line of defense
D) antibody-mediated immunity