The eyes of some birds have two focal points or __________ per eye.
A) foveae
B) cones
C) rods
D) optic tecta
E) pectens
Correct Answer:
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Q29: Over 90% of all birds are
A)polyandrous.
B)monogamous.
C)viviparous.
D)polygynous.
E)protogynous.
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