A : Bats and whales are classified as mammals | vedclass

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(B) Assertion is correct because bats (order $Chiroptera$) and whales (order $Cetacea$) possess mammary glands and are classified as mammals.Reason is

Vedclass · Accepted Answer

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

Vedclass · Answer

(B) Assertion is correct because bats (order $Chiroptera$) and whales (order $Cetacea$) possess mammary glands and are classified as mammals.Reason is correct because both bats and whales exhibit echolocation (used for navigation and hunting) and possess a four-chambered heart,which is a characteristic feature of mammals.However,the presence of echolocation and a four-chambered heart is not the defining reason why they are classified as mammals; they are classified as mammals due to the presence of mammary glands,hair,and other mammalian traits. Thus,Reason is not the correct explanation for Assertion.

$A$ : Bats and whales are classified as mammals.
$R$ : Bats and whales show echolocation and four-chambered heart.

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$A$ : Bats and whales are classified as mammals.$R$ : Bats and whales show echolocation and four-chambered heart.