arustamianan

16.08.2021 20:14

Английский язык

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Vertebrates Vertebrates are animals with backbones. The following
groups are the different types of vertebrates.
Fish
Fish are cold blooded animals
and they live in water. They have
got scales and '_. They haven't
got lungs. They have got gills
instead. Most fish lay eggs and
they don't look after their babies.
Amphibians
When amphibians
are young, they live in
water and they haven't
got lungs. When they are
adult, they've got lungs and
four 4_, for example, frogs
and toads. They lay their eggs in water,
but they don't live in water all the time.
Mammals
All mammals are warm-blooded and they
feed their babies milk. Most mammals live on
land, for example, humans and dogs. Some
mammals, like whales, live in water, but they
haven't got gills. They have all got 2_.
Most of them have got hair and
four legs.
Reptiles
Most reptiles live on land. They have got
lungs and scales, but not gills. They haven't
got any wings or feathers, and they haven't got
fins or 5 _. All the animals in this group, for
example, chameleons and lizards, have got four
legs, except for snakes. They are cold-blooded
animals and many of them live in warm places.
Birds
Birds live on land, but some of them look for
food in water. They have got }_, two legs and
two wings. Some birds like ostriches and kiwis
can't fly. All birds lay eggs and they
feed their young.​