Home
Class 12
BIOLOGY
Assertion : Birds have one ovary. Reas...

Assertion : Birds have one ovary.
Reason : This reduces the body weight for flight.

A

Both Assetion and Reason are true and Reason is the correct exp lanation of Assertion

B

Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion

C

Assertion is true, but Reason is false

D

Reason is true, but Assertion is false

Text Solution

Verified by Experts

The correct Answer is:
A
Birds have many adaptations for flight. They have pneumatic bones and only one overy, which reduces the body weight.
Promotional Banner

Topper's Solved these Questions

  • ANIMALIA-III (CHORDATES)

    ARIHANT NEET|Exercise MEDICAL ENTRANCES GALLARY (COLLECTION OF QUESTIONS ASLED IN NEET & VARIOUS MEDICAL ENTREANCE EXAMS)|76 Videos

  • ANIMALIA-III (CHORDATES)

    ARIHANT NEET|Exercise MATCH THE COLUMNS|6 Videos

  • ANIMALIA-II (HIGHER INVERTEBRATES)

    ARIHANT NEET|Exercise Chapter Exercises C Medical entrances gallery (Collection of questions Asked in NEET & Various Medical Entrance Exams )|1 Videos

  • BASIC CONCEPTS OF IMMUNOLOGY

    ARIHANT NEET|Exercise Medical entrances gallery|77 Videos

Similar Questions

Explore conceptually related problems

Assertion : Birds have penumatic bones. Reason : Birds reduce their body weight for normal flight.

Assertion.Avianbones are pneumatic. Reason. This makes body light for flight in the air.

Assertion : Birds are with pneumatic bones. Reason : Air sacs make the bones lighter which helps in the flight of the birds.

Assertion : Birds have no mammary gland. Reason : Pigeonds secrets 'pigeon's millk'

Assertion Telogonic is a condition of ovary Reason The telogonic gonad is found in Ascaris.

Assertion : For a floating body to be in stable equilibrium, its centre of buoyancy must be located above the centre of gravity. Reason : The torque produced by the weight of the body and the upthrust will restore body back to its normal position, after the body is disturbed.

Assertion: Gymnosperms seeds are naked. Reason: They lack ovary wall.

Assertion: In birds , the skin is moist. Reason: Moist skin of birds reduces effects of friction due to flying in air.