Chapter 28.2, Problem 4MI

Summary Introduction

To state:

The definition of the term tetrapod.

Introduction:

Tetrapods are the animals with 'four-legs ' or 'four-limbs'. Examples of tetrapods are amphibians, reptiles, birds and mammals.

Explanation of Solution

The word "Tetrapods are "four-limbed" animals included in the major groups of the Tetrapoda. They are a four-footed animal with legs that have feet and toes that have joints. Tetrapods are thought to have evolved from lobe-finned fishes. It includes all land-living vertebrates such as frogs, alligator, lizards, mammals such as tiger, deer.

Some animals such as whales and snakeshave lost some or all of the four limbsbut their ancestors had limbs, also included as tetrapods.

Conclusion

Tetrapods are four-footed animal with legs that have feet and toes that have joints