B1 TOPIC 1 - VARIATION

Classification (Part 1/2)

CVHS GCSE POWERPOINT SHARE

Classifying OrganismsClassification is organising living organisms into groups

All living things are classified into one of five kingdoms:•Animals•Plants•Fungi•Protoctists•Prokaryotes

KingdomsKingdoms

Cells

Chlorophyll

Cell Wall

Nucleus

Food

Example

Picture

KingdomsKingdoms Plant

Cells Multicellular

Chlorophyll Yes

Cell Wall Yes

Nucleus Yes

Food Autotroph

Example Daffodil

Picture

KingdomsKingdoms Plant Animal

Cells Multicellular Multicellular

Chlorophyll Yes No

Cell Wall Yes No

Nucleus Yes Yes

Food Autotroph Heterotroph

Example Daffodil Sheep

Picture

KingdomsKingdoms Plant Animal fungus

Cells Multicellular Multicellular Multicellular

Chlorophyll Yes No No

Cell Wall Yes No Yes

Nucleus Yes Yes Yes

Food Autotroph Heterotroph Saprophyte

Example Daffodil Sheep Mushroom

Picture

KingdomsKingdoms Plant Animal fungus Protoctist

Cells Multicellular Multicellular Multicellular Unicellular

Chlorophyll Yes No No -

Cell Wall Yes No Yes -

Nucleus Yes Yes Yes Yes

Food Autotroph Heterotroph Saprophyte -

Example Daffodil Sheep Mushroom Algae

Picture

KingdomsKingdoms Plant Animal fungus Protoctist Prokaryote

Cells Multicellular Multicellular Multicellular Unicellular Unicellular

Chlorophyll Yes No No - -

Cell Wall Yes No Yes - -

Nucleus Yes Yes Yes Yes No

Food Autotroph Heterotroph Saprophyte - -

Example Daffodil Sheep Mushroom Algae Bacteria

Picture

KingdomsKingdoms Plant Animal fungus Protoctist Prokaryote

Cells Multicellular Multicellular Multicellular Unicellular Unicellular

Chlorophyll Yes No No - -

Cell Wall Yes No Yes - -

Nucleus Yes Yes Yes Yes No

Food Autotroph Heterotroph Saprophyte - -

Example Daffodil Sheep Mushroom Algae Bacteria

Picture

Unfortunately, you must learn the highlighted areas on the grid...

Here’s a dancing penguin to cheer you up

He’s in the animal kingdom don’t you know

SubdivisionKingdoms are subdivided into smaller and smaller groups

They are grouped depending on their common features

SubdivisionKingdoms are subdivided into smaller and smaller groups

They are grouped depending on their common features

Here are the subdivision categories• Kingdom• Phylum• Class• Order• Family• Genus• Species

You can learn it this way:• King Prawn Curry On Fat Guy’s Shirt

Here’s an aubergine to cheer you up

He’s in the plant kingdom don’t you know

QuestionsWhat are the 5 kingdoms? (2)

Complete the table of sub-division categories for classification (3)

Kingdom_ _ y _ _ _

_ l _ _ _

o_ _ _ _

_ _ m _ l _

_ _ _ _ _

_ _ _ _ _ _ _

VertebraAnimals are divided into vertebrates and invertebrates

Vertebrates have:• Backbone• Internal SkeletonInvertebrates have:• No backbone or skeleton• Sometimes an external skeleton

Animals

Vertebrates Invertebrates

Fish Amphibians Mammals Reptiles Birds

These are the 5 classes for vertebrates in the animal kingdom

Vertebra

Here’s a mushroom to cheer you up

She’s in the Fungus kingdom don’t you know

Vertebrate divisionVertebrates are classed based on 3 main things...

Absorbing Oxygen• How does the organism absorb oxygen?• Through lungs (birds), gills (fish) or skin (amphibians)

Vertebrate divisionVertebrates are classed based on 3 main things...

Absorbing Oxygen• How does the organism absorb oxygen?• Through lungs (birds), gills (fish) or skin (amphibians)

Reproduce• How does the organism reproduce?• Is fertilisation internal (mammals) or external (fish)• Is the animal oviparous, lays eggs (reptiles) or viviparous, live young fed milk

by the mother (mammals)

Vertebrate divisionVertebrates are classed based on 3 main things...

Absorbing Oxygen• How does the organism absorb oxygen?• Through lungs (birds), gills (fish) or skin (amphibians)

Reproduce• How does the organism reproduce?• Is fertilisation internal (mammals) or external (fish)• Is the animal oviparous, lays eggs (reptiles) or viviparous, live young fed milk

by the mother (mammals)Regulating Temperature• How does the organism regulate it’s internal body temperature?• Is the animal a homeotherm?

‣ Warm Blooded‣ Temperature kept constant by homeostasis‣ (Mammals)

• Is the animal a Poikilotherm?‣ Cold blooded‣ Temperature changes with environment‣ (Reptiles)

QuestionsName the 3 things that are looked at when classing vertebrates(3)

Compare poikilotherms with homeotherms (4)

Give three different ways that a vertebrate can absorb oxygen (3)

The rules of classification were made up based on organisms that were known at the time.

Sometimes newly discovered species don’t fit in the categories.

Problems with the classification system

Problems with the classification systemThe rules of classification were made up based on organisms that were known at the time.

Sometimes newly discovered species don’t fit in the categories.

The duck-billed platypus:• Homeothermic• Suckles it’s young• Lays eggs?! WTF • Mammals usually give birth to live young...

Problems with the classification systemThe rules of classification were made up based on organisms that were known at the time.

Sometimes newly discovered species don’t fit in the categories.

The duck-billed platypus:• Homeothermic• Suckles it’s young• Lays eggs?! WTF • Mammals usually give birth to live young...

There is a debate on if viruses are living:• Most scientists believe viruses aren’t living• They can’t be put into any kingdom...

QuestionsDescribe some problems with the rules of classification(3)

Give the five categories for vertebrates: Explain their qualities and how they are classified (6)