It’s the study of diseases and disorders affecting blood cells, their production, and any organs and tissues involved in hematopoiesis such as bone marrow, the spleen and the thymus ( hope that helps you out a little )
Answer:
The answer is A. Bilateral symmetry involves the division of the animal through a sagittal plane, resulting in two mirror-image, right and left halves, such as those of a butterfly, and a human body
Explanation:
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