Question

Choose the wrong statement:-

This question has multiple answer-

• A. Scales are present in reptilian and aves both
• B. In male birds copulatory organ is absent and in class aves external fertilization is present.
• C. Reptilia are poikilothermal animals
• D. All mammals have mammary glands without exception

Answer 1

Answer: (B), (D)

The correct options are
B In male birds copulatory organ is absent and in class aves external fertilization is present.
D All mammals have mammary glands without exception

Reptiles	Possess scales on their body, poikilothermal animals
Aves	Hind limbs generally have scales, a rudimentary copulatory organ located on the middle portion of the cloaca, it does not use for copulation and used only for sex determination located, and internal fertilization occurs,
Mammals	Mammals have mammary gland but some are the exception e.g. Anteaters, monotremes.

So, the correct answer is ' Option B & D'