Invertebrates class ppt

Classification: Invertebrates

What is classification?

Due to the large number of species of plants and animals, scientist put similar animals in groups. This is called classification.

How are living things classified?

What are Vertebrates and Invertebrates ?

Vertebrates are animals that have a backbone while invertebrates are animals without a backbone.

Which animals are vertebrates?

These animals include:

Fish

Birds

Reptiles

Amphibians

Mammals

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Which animals are invertebrates?

The groups of invertebrates include: jellyfish and sea anemones, flatworms, roundworms, segmented worms, molluscs, starfish and sea urchins and arthropods.

Jellyfish and sea anemones

Jelly-like body.

Have tentacles with stinging cells to catch food.

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Flatworms

Flattened body with no segments (divisions).

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Roundworms

Long thin body with no segments.

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Segmented worms

Long, tube-shaped body made of segments.

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Molluscs

Many have a shell.

Body not in segments.

Move around on a muscular foot.

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Starfish and sea urchins

5 ‘arms’ or star-shaped pattern on their bodies.

Spiny skins

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Arthropods

Jointed legs.

Body has a hard outer skeleton

They can be divided into 4 smaller groups: Crustaceans, Insects, Spiders, Centipedes and millipedes.

Arthrodops: Crustaceans

Chalky outer skeleton.

Most live in water.

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Arthropods: Insects

6 legs.

3 parts to the body.

Have wings.

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Arthropods: Spiders

8 legs.

2 parts to the body.

No wings

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Arthropods: Centipedes and millipedes

Long body made up of segments.

Many legs.

http://images.search.yahoo.com/search/images/view?back=http%3A%2F%2Fimages.search.yahoo.com%2Fsearch%2Fimages%3Fp%3Dcentipedes%26ei%3DUTF-8%26x%3Dwrt%26js%3D1%26ni%3D21&w=100&h=102&imgurl=delmarpestcontrol.com%2Fimages%2Fpests_centipedes.jpg&rurl=http%3A%2F%2Fdelmarpestcontrol.com%2Ftypes.html&size=2.5kB&name=pests_centipedes.jpg&p=centipedes&type=jpeg&no=1&tt=21,154&oid=51ddbae9c48bed46&ei=UTF-8

http://images.search.yahoo.com/search/images/view?back=http%3A%2F%2Fimages.search.yahoo.com%2Fsearch%2Fimages%3Fp%3Dcentipedes%26ei%3DUTF-8%26x%3Dwrt%26js%3D1%26ni%3D21&w=600&h=600&imgurl=www.bighairyspiders.com%2Fpix%2Fsgrobusta2.jpg&rurl=http%3A%2F%2Fwww.xanga.com%2Foceans_of_earwax%3Fnextdate%3D12%252F31%252F2004%2B13%253A50%253A47.593%26amp%3Bdirection%3Dn&size=159.2kB&name=sgrobusta2.jpg&p=centipedes&type=jpeg&no=9&tt=21,154&oid=025865baffadb05c&ei=UTF-8

http://images.search.yahoo.com/search/images/view?back=http%3A%2F%2Fimages.search.yahoo.com%2Fsearch%2Fimages%3Fp%3Dmillipedes%26ei%3DUTF-8%26x%3Dwrt%26js%3D1%26ni%3D21&w=500&h=334&imgurl=static.flickr.com%2F186%2F476398105_116baaf183_m.jpg&rurl=http%3A%2F%2Fwww.flickr.com%2Fphotos%2Fnebarnix%2F476398105%2F&size=175.3kB&name=476398105_116baaf183.jpg&p=millipedes&type=jpeg&no=15&tt=19,454&oid=00167df774b1a110&fusr=nebarnix&tit=Piles+of+Millipedes-2&hurl=http%3A%2F%2Fwww.flickr.com%2Fphotos%2Fnebarnix%2F&ei=UTF-8&src=p

Invertebrates class ppt

Education