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Why do waste substances move from the embryo toward the mother through the placenta?

Answer and explanation

Correct answer: Because the embryo cannot remove its wastes by itself

Step 1: The embryo develops inside the mother's body. Step 2: Waste substances also form in its body. Step 3: The placenta helps send these wastes to the mother's blood for removal.

Related tags

PlacentaWaste-RemovalEmbryoPregnancyReproductionWorld Of LivingScienceClass 10 Mcq

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