| A | B |
|---|
| vertebrate | animal with a backbone |
| invertebrate | animal without a backbone |
| mammal | animal that has fur or hair and produces milk |
| echinoderm | animal that is spiny skinned and found in the ocean |
| reptile | cold-blooded animal with scales |
| amphibian | cold-blooded animal that includes frogs, salamaders, and newts |
| bird | vertebrate that lays eggs and has feathers |
| fish | vertebrates found in water that have fins |
| insect | animals that have six legs and a pair of antennae |
| symmetry | a line that evenly divides a figure making both sides match |
