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Guido Guido
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7 years ago
The common ancestor of sponges and other animals was probably
A) unicellular.
B) multicellular without tissues.
C) multicellular with tissues but without organ systems.
D) multicellular with tissues and a few organ systems.
E) multicellular with tissues and many organ systems.
Textbook 
Biology: Life on Earth

Biology: Life on Earth


Edition: 10th
Authors:
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skeledentskeledent
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7 years ago
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