CLASSIFICATION
CLASSIFICATION
involves putting
SIMILAR THINGS
together in groups
We do this so that Scientists can SHARE DATA about NEW SPECIES
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Most (95%) of SPECIES can be
CLASSIFIED INTO
PLANTS
ALL PLANTS can make their own food by PHOTOSYNTHESIS
ANIMALS
ANIMALS Feed on OTHER LIVING THINGS.
HERBIVORES Eat other Plants
CARNIVORES Eat other Animals
OMNIVORES Eat BOTH Plants and Animals
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CLASSIFICATION OF ANIMALS
The Animal Kingdom is split
into two MAIN groups:
VERTEBRATES –
Have a bony skeleton
with a Backbone
INVERTEBRATESDo not have a bony skeleton
And do not have a backbone
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Find your own pictures of Vertebrates and invertebrates
Most small animals are
invertebrates
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Vertebrates
Animals with backbones can be divided into five more groups:
Mammals
Amphibians
Birds
Reptiles
Fish
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4.2a Groups within groups
Most animals are small
invertebrates.(NO BACKBONE)
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Invertebrates
•These are animals without a backbone
• There are eight groups of
invertebrates
–
–
–
–
–
–
–
1. Molluscs
2. Flatworms
3. Annelids
4. Roundworms
5. Sponges
6. Echinoderms
7. Cnidarians
8. Arthropods
is the largest group
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4.2a Groups within groups
Most invertebrates have jointed legs.
They are arthropods.
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Arthropods
60% of species classified as arthropods
• Have jointed legs and segmented bodies.
• Has a hard OUTER SKELETON
There are four group of arthropods:
– Arachnids
– Centipedes & Millipedes
– Crustaceans
–Insects
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Molluscs
• Crawl on a single
fleshy pad.
• Can have a shell
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Flatworms
• Have flat worm
like bodies
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Annelids
• Have round worm like
bodies
• Have bodies divided
into segments
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Roundworms
• Have long thin round
worm like bodies
• Have bodies with no
segments
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Sponges
• Have bodies
made of loosely
joined cells
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Echinoderms
• Have bodies divided
into five parts
• Have spiny outer
covering
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Cnidarians
• Have thin sack
like bodies
• Have tentacles
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Arthropods
60% of species classified as arthropods
• Have jointed legs and segmented bodies.
• Has a hard OUTER SKELETON
There are four group of arthropods:
– Arachnids
– Centipedes & Millipedes
– Crustaceans
–Insects
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4.2a Groups within groups
Most arthropods have six legs.
They are insects.
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Arthropods - Insects
• Have three pairs of
legs
• Bodies divided into
three sections
• Often have wings
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4.2a Groups within groups
Flies are insects.
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Arthropods - Arachnid
• Have four pairs of
legs.(8 Legs in Total!)
• Have bodies divided
into two sections
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4.2a Groups within groups
Is this an insect?
NO It is a SPIDER and a SPIDER Is an ARACHNID
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Arthropods – Centipedes
& Millipedes
• Have long thin bodies
and pairs of legs on
each of their many
body sections
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Arthropods - Crustacean
• Have five-seven
pairs of legs
• First pair often
used as pincers
• Bodies covered in
shell
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4.2a Groups within groups
Is this an insect?
No It is a CRUSTACEAN
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4.2a Groups within groups
Is this an insect?
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4.2a Groups within groups
Is this an insect?
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4.2a Groups within groups
Many insects have tough covers over their wings.
They are beetles.
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A 7 SPOTTED LADYBIRD-WHAT IS IT?
An ANIMAL
An INVERTEBRATE
An ARTHROPOD
An INSECT
A BEETLE
A LADYBIRD
A 7 SPOTTED LADYBIRD
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4.2a Groups within groups
This is a beetle
Which is a type of insect
Which is a type of arthropod
Which is a type of invertebrate
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