This document outlines the classification of animals. It divides animals into two main groups: vertebrates and invertebrates. Vertebrates have backbones and are further divided into five classes: fish, amphibians, reptiles, birds, and mammals. Invertebrates do not have backbones and are divided into three phyla: worms, molluscs, and arthropods. Arthropods are further broken down into spiders, centipedes/millipedes, crustaceans, and insects. The document provides descriptions of the key characteristics of groups.

1. Classification of
Animals
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Classification of Animals
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2. Classifying Living Things
 We put livings things into two large
groups:
Animals
Plants
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3. Animals
 Animals are spilt into two major
groups:
 Vertebrateshave a backbone
 Invertebrates:
Do not have a backbone
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4. Vertebrates
 These are animals with a backbone.
 There are five groups of vertebrates:
Fish
Amphibians
Reptiles
Birds
Mammals
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5. Fish
 Are cold-blooded.
 Live in water
 Lay eggs (but some
do give birth to live
young).
 Have a moist skin
covered in scales.
 Breathe through
gills.
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6. Amphibians
 Are cold-blooded.
 Lay eggs.
 Have a smooth, moist
skin.
 Are able to live on
land as well as in the
water.
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7. Reptiles
 Are cold-blooded.
 Lay eggs.
 Have a dry skin
covered with
scales.
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8. Birds
 Have feathers and
hollow bones
 Lay hard shelled
eggs
 Warm blooded
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9. Mammals
 Have hair and
produce milk
 Give birth to live
offspring (no eggs)
 Warm blooded
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10. Check your understanding
 To which class of vertebrates do the
given animals belong?
A
B
C
D
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11. E
F
G
H
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12. Invertebrates
 These are animals without a backbone
 They breathe through their skin and
reproduce by laying eggs.
 There are three broad groups of
invertebrates
Worms
Molluscs
Arthropods
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13. Worms
 Have round or flat bodies
 Generally have bodies divided into
segments
 Breathe through their skin
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14. Molluscs
 Crawl on a single
fleshy pad.
 Breathe through
their skin
 Can have a shell
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15. Arthropods
 Have lots of legs and segmented
bodies.
 There are four group of arthropods:
 Spiders
Centipedes & Millipedes
Crustaceans
Insects
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16. Spiders
 Have four pairs of
legs.
 Have bodies
divided into two
sections
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17. Centipedes & Millipedes
 Have long thin
bodies and pairs of
legs on each of
their many body
sections
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18. Crustacean
 Have five-seven
pairs of legs
 Bodies covered
in shell
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19. Insects
 Have three pairs of
legs
 Bodies divided into
three sections
 Often have wings
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20. Invertebrates
Worms
Molluscs
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Arthropods
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21. Check your understanding
A
 Classify the animals as vertebrates
and invertebrates. B
C
D
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22. EVS-Class V
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