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Definition
| the process through which organisms produce more individuals |
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Definition
| the male reproductive organs that produce sperm and the male sex hormone, testosterone |
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Definition
| the sex cell produced in the reproductive organs of a male and that has only half the number of chromosomes of a body cell |
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Definition
| a mixture of sperm and fluid that leaves the body through the urethra |
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Definition
| the female reproductive organ that produces eggs in humans |
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Definition
| the process in which an egg is released about once a month from an ovary |
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Definition
| the hollow, pear-shaped, thick-walled muscular organ where a fertilized egg develops into a baby |
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Definition
| the female muscular tube connecting the lower end of the uterus with the outside of the body |
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Definition
| the monthly cycle of changes in the female reproductive system |
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Definition
| the monthly discharge of blood and tissue cells from the thickened lining of the uterus that begins when a girl reaches puberty and her reproductive organs have matured |
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Definition
| occurs for most women between the ages of 45 and 60 when the menstrual cycle becomes irregular and eventually stops |
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Definition
| a nine-month period of development during which the fertilized egg grows into a baby within the uterus |
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Definition
| an unborn child during the first two months of pregnancy |
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Definition
| a thin membrane that begins to form around the embryo during the third week of pregnancy |
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Definition
| a developing baby after the first two months of pregnancy until birth |
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Definition
| a period of rapid growth and development of both mental and physical skills that extends from the neonatal period to one year |
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Term
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Definition
| the period from the end of infancy to age 12 that is marked by development of muscular coordination and mental abilities |
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Term
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Definition
| the stage of development when a person becomes physically able to reproduce, beginning around ages 12 or 13 |
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Term
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Definition
| the final stage in a person's development, extending from the end of adolescence to old age |
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