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iVinArrow [24]
3 years ago
5

What is the advantage and disadvantage of animals that have placenta with those do not have placenta.​

Biology
1 answer:
Mariana [72]3 years ago
4 0

the advantage of the placenta is that pregnant animals hardly notice the presence of small embryos during the early stages.

in animals without a placenta all necessary nutrients should be present in the egg prior to fertilization.

hope i could help and good luck!

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