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 .

Options

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 the reason are true and the reason is not a correct explanation of the assertion
C. If the assertion is true but the reason is false
D. If both the assertion and reason are false

Answer

A

Explanation

(a) In birds and reptiles, ureters and the rectum open into a common sac called the cloaca ( as there is no chamber for urine and faeces ) for these two which stores both,and reabsorbs water from them and ultimately excretes these white and brownish black material along with aqueous fluid .