haven't got an internal skeleton.

have got an internal skeleton made up of bones.

are oviparous.

are viviparous.

have got feathers.

are born from their mother's womb.

are born from an egg.

have got feathers.

drink their mother's milk.

have got two wings.

are born from mother's womb.

are viviparous.

are oviparous.

drink their mother's milk.

is a fish.

is a amphibian.

is a reptil.

are oviparous.

are viviparous.

haven't got scales.

are oviparous and they have got scales.

are viviparous and they have got scales.

are oviparous and they haven't got scales.

is a reptil.

is an amphibian.

is a fish.

is a fish.

is an amphibian.

is a reptil.

are oviparous and vertebrates.

are viviparous and vertebrates.

are oviparous and invertebrates.

viviparous.

vertebrates.

oviparous.

a head, six legs and two wings.

a head, six legs and two antennae.

crawl.

slither.

crawl.

slither.

a vertebrate animal.

an invertebrate animal.

a vertebrate animal.

an invertebrate animal.

isn't an insect.

is an insect.

is a vertebrate animal.

have got scales.

have got bare skin.

have got fur.