1).Take place when sex cells of two parents animals unite to form a new organism.
2).Fertilization that happens when sperm cells are released into body of the female animal.
3).Fertilization that takes place when the union of the sex cells happens outside the body.
4).The sex cell of a female animal.
5).The sex cell of a male parent.
2).Fertilization that happens when sperm cells are released into body of the female animal.
3).Fertilization that takes place when the union of the sex cells happens outside the body.
4).The sex cell of a female animal.
5).The sex cell of a male parent.
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