A lymphatic organ that helps develop the immune system is the thymus gland. The main function of this soft, roughly triangular organ is training and development of T-lymphocytes or T cells, an extremely important type of white blood cell which defend the body from potentially deadly pathogens such as bacteria, viruses, and fungi. Correct answer: B
A: because fragmentation in multicellular organisms is a form of asexual reproduction in which an organism is split into fragments
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The answer is D. He is using muscular strength.
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