What does the middle ear consist of?
A. The ear drum
B. The tympanic canal
C. The vestibular canal
D. Three ossicle bones
E. The ear canal
Answer: D
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What will be an ideal response?
Which time period would hold the record of the oldest fossils of multicellular animals, found in mountainous areas of
South Australia, and parts of Canada and China? a. Edicarian b. Devonian c. Cambrian d. Cretaceous e. Ordovician
Traits that depend on more than one gene are
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What part of the sperm first contacts the egg plasma membrane?
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