Answer:
Carbon dioxide moves in; oxygen moves out
Explanation:
Answer:
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Explanation:
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<em>Substitution is a type of mutation where one base pair is replaced by a different base pair. The term also refers to the replacement of one amino acid in a protein with a different amino acid.</em>
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Cross over is the first way genes are shuffled to give rise to genetic diversity. Cross over takes place in sexual reproduction. The normal way that cross over occurs is chromosomes line up side by side and break off pieces of themselves, then trade those pieces with each other.
If they break the pieces at the same locus in the sequence of base pairs, the result is an exchange of genes called genetic recombination and it ensures that the daughter cells produced have a different genetic makeup from the parent cell and thus diversity occurs.
Yes. Every chemical reaction obeys the law of conservation of mass.
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A divide is the elevated boundary between areas that are drained by different rivers system