Why development of embryo take place outside the parent body in oviparous animals?
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After the chick is completely developed it bursts open the egg shell. In animals which undergo external fertilization, development of theembryo takes place outside the femalebody. The embryos continue to grow within their egg coverings. After theembryos develop, the eggs hatch
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because they have the ability to change male to female or the opposite and it depends on the temperature
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