Answer:
A genetic factor for a trait that is always expressed when it is present is best described as dominant.
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Chemotherapy and/or stem cell transplant
Answer:
<u><em>a reliable source </em></u>
Explanation:
The five main characteristics are foot region, hard exoskeleton, bilateral symmetry, left and right limbs and a segmented body.
The circulatory aids with the immune system because they provide white-blood cells to help fight with the diseases or sicknesses.
