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Scorpions do not lay eggs but rather give birth to live young.

A) True
B) False

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If a mutation occurred in a human such that the pharyngeal slits never formed,what do you predict would be the consequence?


A) A cleft palate would form.
B) The eustachian tubes would not form.
C) The thyroid gland would not form.
D) The glottis would not form.
E) The opening to the voice box would not form.

F) C) and D)
G) All of the above

Correct Answer

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Why are choanoflagellates considered to be the ancestor of animals?


A) similarities in cell structure
B) similarities in rRNA
C) similarities in DNA
D) similarities in embryonic development

E) C) and D)
F) A) and C)

Correct Answer

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