Answer:
Protozoology should be the answer.
<span>It helps scientists understand how populations and species react to changes in their environment, and this knowledge can be used to help these populations and species survive.</span>
Dominant trait<span> definition. In genetics, a </span>trait<span> that will appear in the offspring if one of the parents contributes it. (Compare recessive </span>trait.) Note: In humans, dark hair is a dominant trait; if one parent contributes a gene for dark hair and the other contributes a gene for light hair, the child will have dark hair ...Recessive traits<span> can be carried in a person's genes without appearing in that person. For example, a dark-haired person may have one gene for dark hair, which is a dominant </span>trait<span>, and one gene for light hair, which is </span>recessive<span>.
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the extra cell in your blood cells
