Answer:
a spider has 4 pairs of legs, since they have 8 legs
Answer:
The puppy has a %53 for being brown
Explanation:
Math
Mitochondrial DNA can be traced for generations. It is because of the fact that unlike nuclear DNA, mitochondrial DNA rarely gets mutated. The frequency of mutations in the mitochondrial DNA is approximately one every 3,500 years per nucleotide. That is why mitochondrial DNA of a person is almost similar to his/her direct maternal ancestor. So, it can be used to match lineages amongst people.
Respiration Chemical change that takes place inside living cells, which uses glucoses and oxygen to produce energy.
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