#1 b1 topic 1 - classification (part 1 of 2)
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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)
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