Which of the following characteristic features always holds true for the corresponding group of animals?

Question

Which of the following characteristic features always holds true for the corresponding group of animals? (A) Viviparous - Mammalia (B) Possess a mouth with an upper and a lower jaw - Chordata (C) 3-chambered heart with one incompletely divided ventricle - Reptilia (D) Cartilaginous endoskeleton - Chondrichthyes

Tardigrade Admin · Accepted Answer

Chondrichthyse always have cartilagenous endoskeleton.

Q. Which of the following characteristic features always holds true for the corresponding group of animals?

Viviparous - Mammalia

Possess a mouth with an upper and a lower jaw - Chordata

3-chambered heart with one incompletely divided ventricle - Reptilia

Cartilaginous endoskeleton - Chondrichthyes

Chondrichthyse always have cartilagenous endoskeleton.