Q.

Prototherians differ from all other mammals by the

Easy

Want to Fund your own JEE / NEET / Foundation preparation ??

Take the SCORE scholarship exam from home and compete for scholarships worth ₹1 crore!*

An Intiative by Sri Chaitanya

presence of cloaca

presence of pinna

absence of mammary glands

absence of diaphragm

answer is A.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

Prototherians have a cloaca. The anus and urinogenital aperture are separate in metatherians and eutherians. Pinna is absent in prototherians. The mammary glands and the diaphragm are present in all the mammals.Hence, the prototherian, duck billed platypus is considered a connecting link between the reptiles and mammals.

Result Producing online coaching for JEE/NEET of south India

Largest All India Test Series for JEE/NEET

Best Books for IIT JEE

Best Books for NEET