1 Read the definitions and complete the sentences.
A vertebrate is an animal with a backbone. There are five groups of vertebrates:
fish, amphibians, reptiles, birds and mammals.
scales
-gill
fin
feathers
wing
beak
eye
nose
fur
smooth skin
- leg
tail
scales
1 This is a goldfish. It's a
2 This is a parrot. It's a
3 This is a frog. It's an
4 This is a dog. It's a
5 This is a lizard. It's
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