Answer:
The answer is option 1 about 70% of total global carbon is found in oceans.
Explanation:
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Answer:
Algae produced and still produces much of the world's oxygen supply, especially in the atmosphere.
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Explanation:
Answer:
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No offense, but you’re asking somebody to write basically an entire essay. Try to think of what YOU would do. Every journal is written differently.
Because natural selection acts directly only on phenotypes, more genetic variation within a population usually enables more phenotypic variation. Some new alleles increase an organism's ability to survive and reproduce, which then ensures the survival of the allele in the population.