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During which eon did invertebrates begin to populate the earth?

a. amebic eon
b. archeaon eon
c. phanerozoic eon
d. proterozoic eon

User Keyle
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c. phanerozoic eon Im like 25% sure
User Regal
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Answer:

the answer is d. proterozoic eon.

Step-by-step explanation:

During the Proterozoic eon, the first multicellular life evolved, including colonial algae, soft-bodied invertebrates, and sponges.

User Marina Aguilar
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