bigmamabear bigmamabear

16-12-2016
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in science explain the difference between internal and external fertilization and the advantages and disadvantages of each reproductive strategy?

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Natly1123 Natly1123

18-12-2016

External: Requires water for the sperm cell to unite with the egg cell because both the egg and the sperm cell have to be released into the water so the sperm may "swim" to reproduce.

Internal: Water is not needed. The sperm and egg cell is united through sexual reproduction inside of the body of a parent.

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