Question

Which among the following is true for a tetrapod?

• A. Four limbs (or had ancestors that had four limbs)
• B. Has internal gills
• C. Do not have a vertebral column
• D. Do not have well developed sense organs

Answer 1

The correct option is A Four limbs (or had ancestors that had four limbs)

Tetrapoda is derived from Greek word meaning ‘four foot’. It includes the vertebrate animals that have four limbs or had ancestors that had four limbs. It includes amphibians, reptiles (including dinosaurs), birds (aves) and mammals. Exceptions are snakes (reptile) and Ichthyophis (amphibian) which are limbless.

Tetrapods