A: Placenta is connected to the embryo throug | vedclass

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(B) The Assertion is correct: The placenta is connected to the embryo through an umbilical cord,which facilitates the transport of oxygen,nutrients,an

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Assertion and Reason both are correct but Reason is not the correct explanation of Assertion.

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(B) The Assertion is correct: The placenta is connected to the embryo through an umbilical cord,which facilitates the transport of oxygen,nutrients,and waste products between the mother and the fetus.The Reason is also correct: The placenta acts as an endocrine tissue and produces several hormones like human chorionic gonadotropin $(hCG)$,human placental lactogen $(hPL)$,estrogens,and progestogens,which are essential for maintaining pregnancy.Since both statements are factually correct but the Reason does not explain why the umbilical cord is used for transport,the correct option is $B$.

$A$: Placenta is connected to the embryo through an umbilical cord which helps in the transport of substances to and from the embryo.
$R$: Placenta acts as an endocrine tissue.

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$A$: Placenta is connected to the embryo through an umbilical cord which helps in the transport of substances to and from the embryo.$R$: Placenta acts as an endocrine tissue.