Assertion: Bats and whales are classified as mammals.
Reason: Bats and whales have four-chambered heart.
(a) If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
(b) If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
(c) If the Assertion is correct but Reason is incorrect.
(d) If both the Assertion and Reason are incorrect.
(e) If the Assertion is incorrect but the Reason is correct.
Correct option: (b)
Explanation:
Bats and whales are classified as mammals. They have milk secreting mammary glands. Whales and bats are mammals. Whales are warm blooded, breath air through lungs and give birth to live young that are suckled on milk secreted from the mother’s mammary glands. Bats have hair, give birth to live young and feed these young on milk produced in mammary glands. They are the only true flying mammals and are so unique that they have been placed in an order of their own chiroptera. 4-chambered hearts in mammals and birds keep fully oxgenated.