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The mother contributes 50% to the child, and the father contributes the other 50% to make up the full 100% of the child's genes.
God (punishment)
While some diseases have been wiped out by advancing medicine, some still exist today. Back when medicine has relied on religion, spiritual and traditional beliefs, people believed a "higher power" causes the illnesses. They believed that God gave the illnesses as punishment for sins or disobedience. Consequently, the people believed that the treatment for these illnesses are rituals and prayers.
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Body fluid contains electrolytes, chemicals which, when they dissolve in water, produce charged ions. These ions enable the flow of electrical signals through the body. Electrolytes play an important role in the body; they regulate the osmotic pressure in cells and help maintain the function of muscle and nerve cells.
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he hypothalamus and pituitary gland, which are in the brain, initiate puberty. The hypothalamus secretes luteinizing hormone-releasing hormone, which stimulates the pituitary to secrete luteinizing hormone and follicle-stimulating hormone. Luteinizing hormone causes the testes to produce testosterone. Follicle-stimulating hormone (plus testosterone) causes the testes to produce sperm. Testosterone is responsible for the development of secondary sex characteristics, features that stimulate male development (including characteristics that are not part of the reproductive system, such as facial hair growth and voice change).
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