reptiles

Post on 21-Jun-2015

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REPTILES

Reptiles live on land and in water. The giant crocodiles and snakes can grow as large as 9 metres. The smallest reptiles are lizards. Some common characteristics:

• They are vertebrates.• They are “cold-blooded” animals.• They have scales and dry skin.• They have four legs or no legs.• They usually lay eggs, sometimes live young.• They have ear holes, not ears.

INTRODUCTION

REPRODUCTIONReptiles are oviparus animals. The mothers lay eggs. Then the babies grow inside the eggs. Later , the eggs break open and the babies come out.

Crocodiles lay eggs. Mothers make a nest. It may be a hole in the sand or a small mountain of dirt and dry leaves, grass and other parts of the vegetation.

BODY COVERINGReptiles, and birds or mammals have scales to protect their bodies against the cold . Snakes shed their skin every year to get rid of parasites wounds ...

COLD BLOODReptils are cold blooded..

WHAT DO THEY EAT?

Most of the reptiles are carnivores. They have a simple and short tract. Some reptiles eat vegetables.

HOW DO THEY BREATHE?

• The lungs of reptiles are spongy and have more surface area for gas exchanging that amphibians.

• Let’s watch an interesting video to know more about reptiles. http://www.youtube.com/watch?v=KjTu1BIe0ZM

We do not want to end this power point as it’s so original. We had lots of fun!.

By Alba Gordillo, Carla Patiño and Elena Marco:

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