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Frogs

                              FROGS

  Frogs are amphibians. They spend a part of their life under water and the other part on land.

                                                             Frog life cycle

1. Frogs lay their eggs in water (puddles, ponds, lakes)                          

2. The eggs hatch into tadpoles

The tadpoles develop in water. They breathe with gills and swim using a tail.

As they mature they grow legs, the tail becomes smaller. They are often herbivorous, feeding mostly on algae.

3. At about 2-4 months old a tadpole has become a froglet. It still has part of its tail ,

   but can now breathe air using lungs. 

4. When the frog is an adult the tail has been reabsorbed by the body.

Adult frogs have long, powerful jumping legs and a very short backbone.

They follow a carnivorous diet. They eat insects by catching them with their long, sticky tongue.

The first true frogs evolved during the jurassic period about 200 million years ago during the time of the dinosaurs.

English exercise "Frogs" created by lili73 with The test builder
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1. An adult frog is a small carnivorousherbivorousomnivorous animal.
2. Frogs spend their lives on land and in the wateron landin the water .
3. When a frog egg hatches the animal is called a larvaa tadpolea froglet.
4. An adult frog has a short taila long tailno tail.
5. Frogs' eggs are laid on landin wateron land or in water.
6. As tadpoles mature they grow legsa tailgills.
7. The newly-hatched animal breathes using gillslungs.
8. This newly-hatched animal lives in wateron land.
9. Look at the pictures and say which legs grow first forelegshind legs.
10. Some frogs have a loud call which can be heard up to 8 kilometres away during their mating seasonin winter.