Birds differ from bats in the absence of

  • A
    $4-$ chambered heart
  • B
    Homoiothermy
  • C
    Diaphragm
  • D
    Tracheae

Explore More

Similar Questions

The long neck of a camel is due to:

Rabbit belongs to the order:

Which mammal possesses both reptilian and mammalian characters?

Elephants have very poor

Which of the following characteristics is associated with the life of mammals?

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