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

  • A
    Assertion and Reason both are correct and Reason is the correct explanation of Assertion.
  • B
    Assertion and Reason both are correct but Reason is not the correct explanation of Assertion.
  • C
    Assertion is correct,but Reason is incorrect.
  • D
    Both Assertion and Reason are incorrect.

Explore More

Similar Questions

Which one of the following is a metatherian?

Which of the following is an oviparous mammal?

Thecodont teeth are present in:
$a.$ Sphenodon
$b.$ Crocodiles
$c.$ Mammals
$d.$ Scoliodon

In all mammals, . . . . . . .

Mammary glands are present in?

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo