1. Amphibians
Amphibians Amphibians form a class of vertebrates. Vertebrates are animals that have backbones their surround their nerve cords. The nerve cord is found along the back of the animal. The bodies of most vertebrates have a head and a trunk. Many vertebrates have two pairs of limbs attached to the...
- Word Count: 530
- Approx Pages: 2
- Grade Level: High School