How do silk moths attract mates?
A) The females flit around the males in an elaborate dance.
B) They build elaborate nests.
C) The females secrete pheromones to attract males.
D) The males sing a high-pitched song to attract the females.
E) The males turn bright red as a visual signal.
C
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Tetanus vaccine contains
A. inactivated bacteria. B. inactivated spores. C. live bacteria. D. inactivated tetanospasmin.
The study of fungi is called ____
a. ecology b. botany c. mycology d. microbiology e. parasitology
The transformation of humans from hunter-gatherer societies to agriculturally based ones occurred
approximately _____.
a. 14,000 years ago b. 11,000 years ago c. 7,000 years ago d. 1,500 years ago e. 200 years ago
The lower the ___________, the slower the molecules are moving.
A. density B. temperature C. potential energy D. gravity