They belong to the kingdom Protista. Protists are single celled organisms. Paramecium is also single celled .
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<em>Answer is B. The fossils in the lower layers are older than the fossils in the upper layers.</em>
Answer:
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Explanation:
Scientists say early plants may have contributed. Plants enhance a process called silicate weathering, which sucks carbon out of the atmosphere and ultimately tucks it away at the bottom of the oceans. Here's how it works: Caron dioxide in the atmosphere forms carbonic acid.
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B is the correct answer
Explanation:
