Assertion : Sponges do not show any animal nature.
Reason : Sponges are sessile with no apparent way of capturing food or eliminating water

Options

A. Both Assertion and Reason are true and Reason is the correct explanation 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. Assertion is false, but Reason is true.

Answer

D

Explanation

Robert Grant was the first to recognise and prove the true animal nature of sponges.
The animal nature of sponges was well establised on the following facts
Their mode of nutrition is truly holozoic.
They are devoid of cell walls (characteristic feature of plants). Life cycle includes free swimming , cliated larval stages resembling those of other animals.
Sponges are sessile and digestion is very simple without any apparent way of capturing food or climinating wastes .