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Definition
| a protective sac that encloses the testes |
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Definition
| the sperm and the seminal fluid combined |
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Definition
| characteristic a trait that is controlled by a gene on the X chromosome |
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Definition
| unspecialized cell that has the ability to reproduce itself and differentiate into a specialized cell |
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Definition
| mother a woman who carries embryos produced by in vitro fertilization for an infertile couple |
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Term
| testes (singular is testis) |
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Definition
| produce and nourish sperm as they develop, and also produce testosterone testosterone [tess-TOSS-tuhr-own] the male sex hormone produced by the testes |
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Term
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Definition
| in males, a tube that transports both sperm and urine outside the body uterus [YOO-tuh-ruhs] the organ in which the embryo develops; also called the womb |
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