Home
Class 11
BIOLOGY
Assertion : Urea is a less toxic excreto...

Assertion : Urea is a less toxic excretory substance comparatively to uric acid
Reason : Birds and insects are uricotellic animals .

A

If both the assertion and the reason are true and the reason is a correct explanation of the assertion

B

If both the assertion and reason are true but the reason is not a correct explanation of the assertion

C

If the assertion is true but the reason is false

D

If the assertion is false but reason is true

Text Solution

Verified by Experts

The correct Answer is:
D

Uric acid is less toxic than urea. Birds, reptiles and certain insects are uricotelic animals that excrete uric acid as a waste matter.
Promotional Banner

Similar Questions

Explore conceptually related problems

Assertion: Urea is a less toxic excretory substance comparatively to urice acid. Reason: Birds and insects are ureotelic animals.

Assertion : In birds and reptiles , main excretory product is the combined form of urine and faeces . Reason : Birds and reptiles have no separate chamber for excretion of urine and faeces .

Assertion :- Uricotelism is terrestrial adaptation. Reason :- Uric acid is least toxic and can be removed with a minimum loss of water.

Assertion: Insects contribute the maximum to the total diversity of animals. Reason: Angiosperms and insects are coevolved to perform as plant-pollinator.

Assertion: Transgenic animals are now used in toxicity testing of various toxic chemicals Reason :Such animals carry gene which make them more sensitive to toxice substances

Assertion : Lipids provide more energy as compared to carbohydrates on oxidation . Reason : Lipid is the first respiratory substance .