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OpenStudy (anonymous):

explain the dif. of internal fertilization and external fertilization and the advantages and disadvantages. help?

OpenStudy (anonymous):

Can someone help me I need this answer please?

OpenStudy (anonymous):

Hopefully this will help, and if so please give me a Medal! http://wiki.answers.com/Q/What_are_the_advantages_and_disadvantages_of_external_fertilisation?#slide=1

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