The top documents tagged [spermthe female egg]

15/10/2015Reproduction KRS. 15/10/2015 Fertilisation in Animals Fertilisation in animals can happen either INTERNALLY or EXTERNALLY. Some examples: ExternalInternal.

15/10/2015Reproduction KRS. 15/10/2015 Fertilisation in Animals Fertilisation in animals can happen either INTERNALLY or EXTERNALLY. Some examples: ExternalInternal.

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