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Read the following Assertion and Reason and choose the correct option. Assertion: The most unique mammalian characteristic is the presence of four chambered heart which is absent in other classes Reason: This type of heart is efficient for the mammals to survive in harsh conditions

Options

  1. ABoth Assertion and Reason are true and Reason is correct explanation of Assertion
  2. BBoth Assertion and Reason are true but Reason is not the correct explanation of Assertion
  3. CAssertion is true but the Reason is false
  4. DBoth Assertion are Reason are false

Correct answer

D. Both Assertion are Reason are false

Step-by-step solution

The most unique mammalian characteristic is the presence of milk producing glands (mammary glands) by which the young ones are nourished.

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