How many groups of vertebrates are described in the text?
There are five groups of vertebrates described: fish, amphibians, reptiles, mammals, and birds.
Which type of animal is different when it's older?
Amphibians, like frogs, undergo metamorphosis and are different when they're older.
Which type of animal doesn't live on land?
Fish typically don't live on land.
Are fish cold-blooded or warm-blooded animals?
Fish are cold-blooded animals
Which type of animal has got hair?
Mammals are the type of animals that have hair.
Which type of animal feeds its babies milk?
Mammals, including humans and cows, feed their babies milk.
How are snakes different from other reptiles?
Snakes are different from other reptiles because they lack legs.
Which types of animal have got scales?
Reptiles, such as snakes and some lizards, have scales.