Question

What is the basis of classification of vertebrata into sub groups?

• A. Notochord
• B. Vertebral column
• C. Organs of respiration
• D. Organs of reproduction

Answer 1

The correct option is C Organs of respiration

Vertebrata is a class of organisms containing notochord and vertebral column.

These organisms are divided into subgroups by modes of respiration. For example, fishes breathe through gills, amphibians through the skin, birds through air sacs and mammals through the lungs.

Organs of reproduction are the same in all the animals, though the mode of reproduction may vary.

So, the correct option is C.