41. Which of the following is a correct statement? A. The hemolymph fluid is the exchange medium between body cells and the circulatory system in vertebrate animals B An animal is a closed system that is separate and distinct from its environment. The gastrovascular cavity provides the nutrient exchange surface in mammals D Animals isolated from their environments live longer than those exchanging matter with the environment. E. None of the above answer choices is correct

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Hematology

Hematology is the branch of biology. Hematology is the medical field that deals with the treatment of blood disorders and cancers, such as hemophilia, leukemia, lymphoma, and sickle-cell anemia. Hematologists and hematopathologists are medical professionals who specialize in illnesses of the blood and its components.