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ollegr [7]
3 years ago
9

Most of the coal found on Earth today was formed during the Carboniferous and Permian Periods. About how old could a piece of co

al be?
Biology
1 answer:
Law Incorporation [45]3 years ago
5 0

Answer: 298.9 million years old

Explanation: hope it helps luv ❤✨

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If both parents have type A blood, then the alleles could be AA or AO, thus the allele A frequency is 75%, allele O frequency is 25% for both parents. 
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Child Blood Type Estimate Table:
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Blood
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