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Naily [24]
3 years ago
14

What happened around 800 million years after Earth formed to allow rocks to

Geography
2 answers:
Alchen [17]3 years ago
5 0
Life began to appear
tensa zangetsu [6.8K]3 years ago
5 0
A. life began to appear
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You are at the aquarium looking at a freshwater mammal tank and a manatee swims close to the glass. On his front flippers you se
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The fingernails on the manatee are homologous structures.

Explanation:

The manatee is an animal that lives in the water, but it is not an animal that is related to the fish, instead it is a mammal. When the term mammal is mentioned, people often think of terrestrial animals, but some of the mammals are not living in the water, and have lot of characteristics that are very similar to the other marine animals. Mammals that live in water are:

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Learn more about brainly.com/question/1274613

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