#1 B1 topic 1 - classification (part 1 of 2)
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B1 Topic 1 - classification (part 1 of 2): Edexcell GCSE Science -> Higher -> Core Science -> B1 -> Topic 1 -> Classification 1st in the B1 Topic 1 series - Contains everything you need to know from the specification* - Specially designed for triple and dual science GCSE - A good teaching tool - A good revision tool - Compliments the CGP revision books *From Edexcell GCSE Science from 2011 specification, suitable for 2014 & 2015 exams Contains detailed notes and questions that may come up in the exams. Please comment with your views or any questions that you may have.
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#1 B1 topic 1 - classification (part 1 of 2)
- 1. B1TOPIC 1 -VARIATION Classification (Part 1/2) CVHS GCSE POWERPOINT SHARE
- 2. Classifying Organisms Classification is organising living organisms into groups All living things are classified into one of five kingdoms: •Animals •Plants •Fungi •Protoctists •Prokaryotes
- 4. Kingdoms Kingdoms Plant Cells Multicellular Chlorophyll Yes Cell Wall Yes Nucleus Yes Food Autotroph Example Daffodil Picture
- 5. Kingdoms Kingdoms Plant Animal Cells Multicellular Multicellular Chlorophyll Yes No Cell Wall Yes No Nucleus Yes Yes Food Autotroph Heterotroph Example Daffodil Sheep Picture
- 6. Kingdoms Kingdoms 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
- 7. Kingdoms Kingdoms 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
- 8. Kingdoms Kingdoms 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
- 9. Kingdoms Kingdoms 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...
- 10. Here’s a dancing penguin to cheer you up He’s in the animal kingdom don’t you know
- 11. Subdivision Kingdoms are subdivided into smaller and smaller groups They are grouped depending on their common features
- 12. Subdivision Kingdoms 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
- 13. Here’s an aubergine to cheer you up He’s in the plant kingdom don’t you know
- 14. Questions What are the 5 kingdoms? (2) Complete the table of sub-division categories for classification (3) Kingdom _ _ y _ _ _ _ l _ _ _ o_ _ _ _ _ _ m _ l _ _ _ _ _ _ _ _ _ _ _ _ _
- 15. Vertebra Animals are divided into vertebrates and invertebrates Vertebrates have: • Backbone • Internal Skeleton Invertebrates have: • No backbone or skeleton • Sometimes an external skeleton
- 16. Animals Vertebrates Invertebrates Fish Amphibians Mammals Reptiles Birds These are the 5 classes for vertebrates in the animal kingdom Vertebra
- 17. Here’s a mushroom to cheer you up She’s in the Fungus kingdom don’t you know
- 18. Vertebrate division Vertebrates are classed based on 3 main things... Absorbing Oxygen • How does the organism absorb oxygen? • Through lungs (birds), gills (fish) or skin (amphibians)
- 19. Vertebrate division Vertebrates 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)
- 20. Vertebrate division Vertebrates 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) RegulatingTemperature • 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)
- 21. Questions Name 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)
- 22. 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
- 23. Problems with the classification system 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. The duck-billed platypus: • Homeothermic • Suckles it’s young • Lays eggs?! WTF • Mammals usually give birth to live young...
- 24. Problems with the classification system 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. 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...
- 25. Questions Describe some problems with the rules of classification(3) Give the five categories for vertebrates: Explain their qualities and how they are classified (6)