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Bio CH24
Biology CH24 Animal Reproduction
Term | Definition |
---|---|
estrogen | a female hormone |
estrous cycle | a cycle in which a female will mate only at certain times |
external fertilization | the joining of egg and sperm outside the body |
internal fertilization | the joining of egg and sperm inside the female’s body |
menstrual cycle | the monthly changes that take place in the female reproductive organs |
menstruation | the loss of cells from the uterine lining, blood, and egg |
oviduct | tube-like organs that connect the ovaries to the uterus |
penis | places sperm in vagina during mating |
regeneration | reproduction in which the parent separates into two or more pieces and each piece forms a new organism |
reproductive system | the body system used to produce offspring |
sexually transmitted disease | those diseases transmitted through sexual contact |
scrotum | the sac that holds the testes |
uterus | a muscular organ in which the fertilized egg develops |
vagina | a muscular tube that leads from outside the female’s body to the uterus |
vas deferens | carries sperm from testes to urethra |