Oxford University Press 2008 CLASSIFICATION CLASSIFICATION involves putting SIMILAR THINGS together...

© Oxford University Press 2008

CLASSIFICATION

CLASSIFICATION involves putting SIMILAR THINGS

together in groupsWe do this so that Scientists can SHARE DATA about NEW SPECIES


Most (95%) of SPECIES can be CLASSIFIED INTOPLANTS

ANIMALSALL PLANTS can make their own food by PHOTOSYNTHESIS

ANIMALS Feed on OTHER LIVING THINGS.

HERBIVORES Eat other PlantsCARNIVORES Eat other Animals

OMNIVORES Eat BOTH Plants and Animals


CLASSIFICATION OF ANIMALSThe Animal Kingdom is split

into two MAIN groups:

VERTEBRATES – Have a bony skeleton with a Backbone

INVERTEBRATES- Do not have a bony skeletonAnd do not have a backbone


Most small animals are invertebrates

Find your own pictures of Vertebrates and invertebrates


VertebratesAnimals with backbones can be divided into five more

groups:Mammals Birds Reptiles

Amphibians

Fish


4.2a Groups within groups

Most animals are small invertebrates.(NO BACKBONE)


Invertebrates

• There are eight groups of invertebrates– 1. Molluscs– 2. Flatworms – 3. Annelids– 4. Roundworms– 5. Sponges– 6. Echinoderms– 7. Cnidarians

•These are animals without a backbone

8. Arthropods is the largest group



Most invertebrates have jointed legs.They are arthropods.


Arthropods60% 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


Molluscs

• Crawl on a single fleshy pad.

• Can have a shell


Flatworms

• Have flat worm like bodies


Annelids• Have round worm like

bodies• Have bodies divided

into segments


Roundworms• Have long thin round

worm like bodies• Have bodies with no

segments


Sponges

• Have bodies made of loosely joined cells


Echinoderms

• Have bodies divided into five parts

• Have spiny outer covering


Cnidarians

• Have thin sack like bodies

• Have tentacles


Arthropods60% 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



Most arthropods have six legs.They are insects.


Arthropods - Insects

• Have three pairs of legs

• Bodies divided into three sections

• Often have wings



Flies are insects.


Arthropods - Arachnid• Have four pairs of

legs.(8 Legs in Total!)• Have bodies divided

into two sections



Is this an insect?

NO It is a SPIDER and a SPIDER Is an ARACHNID


Arthropods – Centipedes & Millipedes

• Have long thin bodies and pairs of legs on each of their many body sections


Arthropods - Crustacean• Have five-seven

pairs of legs• First pair often

used as pincers• Bodies covered in

shell



Is this an insect?

No It is a CRUSTACEAN



Is this an insect?



Many insects have tough covers over their wings. They are beetles.


A 7 SPOTTED LADYBIRD-WHAT IS IT?

A BEETLE

An INSECT

An ARTHROPOD

An INVERTEBRATE

An ANIMAL

A LADYBIRD

A 7 SPOTTED LADYBIRD



This is a beetleWhich is a type of insect

Which is a type of arthropodWhich is a type of invertebrate

Oxford University Press 2008 CLASSIFICATION CLASSIFICATION involves putting SIMILAR THINGS together...

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