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In the development of dogs, monkeys and dolphins, nourishment and oxygen are provided by the mother to the fetus through the

User Aboutaaron
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Answer:

its the placenta

Step-by-step explanation:

User Kevin Le
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The umbilical cord.

During the gestation period of most mammalian species like the digs, monkeys, dolphins, cats, cows, horses and other related organisms they develop the so-called umbilical cord. This tissues and tube-like structure helps the offspring develop by delivering nutrients from the mother to the ongoing fetus.

User Joshua Kelly
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