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Year 7 Science: Classification

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Year 7 Classification Topic: Revision Checklist

1. Explain the difference between a natural and an artificial system of classification.

2. Define the term species.

3. Know what the binomial system is and be able to write down the binomial name of an organism in the correct way given its genus and species. Genus should be written with a capital letter and the species name with a lower case letter. This should be underlined or in italics if typed.

4. Know that living organisms can be classified into five kingdoms (Bacteria, Protoctists, Fungi, Plants, Animals). Know the basic differences between organisms in these 5 Kingdoms.

5. Know the 7 levels of organisation in the classification system: Kingdom, Phylum, Class, Order, Family, Genus, Species.

6. Be able to describe the main features of bacteria (cell wall, no nucleus, reproduce by splitting in 2) and fungi (mycelium of hyphae, no chlorophyll, spores, cell wall of chitin).

7. Be able to describe the main features of mosses (simple stem, no veins, spores) ferns (young ‘leaves’ coiled in bud, spore bodies in clusters), conifers (cone-bearing trees and shrubs) and flowering plants (seeds enclosed in fruit).

8. Know the characteristic features of arthropods

9. Know the characteristic features of insects (three body regions, three pairs of legs, wings), crustaceans (two pairs of antennae) arachnids (four pairs of legs) and myriapods (appendages on all segments

10. Know the characteristic features of fish (scales, gills, fins), amphibians (no scales, aquatic and terrestrial life cycle), reptiles (dry scaly skin, soft-shelled egg), birds (feathers, wings, hard-shelled egg) and mammals (hair, mammary glands).

11. Be able to use a key to identify major plant and animal groups.

12. Be able to construct a key

13. Outline the work of John Ray and Carl Linnaeus in developing a modern classification system.

Natural and Artificial ClassificationArtificial Classification Natural Classification

Taxonomy – System of Classification

What is the definition of “species”?

Hybrid animals such as the Liger are infertile (they can’t have babies). This is because their parents are two different species.

Hybrid Animals – Research!

Phylogenetic Trees

Year 7: A-level Biology Challenge! Can you do the same homework the sixth form did this week? 5 marksQuestion 1:

Question 2:

Question 3:

Classification Scientists Timeline

Taxonomic Groups:

Making and Using KeysHere is a key to identify the people in our form:

Year 7 Classification Crossword!

Across2. A group of vertebrates covered in scales and that have gills7. A group smaller than a phylum but bigger than an order9. The proper name for a fern leaf10. The smallest group in taxonomy which only contains one organism12. How many body sections do insects have?13. A group of vertebrates covered in dry scaly skin14. This kingdom contains multicellular organisms with no cell wall17. A group of vertebrates covered in hair which feed their young milk19. The material used to make fungi cell walls20. Crustaceans have these to protect their bodies23. A group of vertebrates covered in feather25. These invertebrates have legs on every body segment26. Mammals with teeth for gnawing27. The first of the two words in an organism’s binomial name tell you what _____ they are in

Down1. Plants make their own food by……?3. Animals without backbones4. How do many molluscs protect themselves?5. The kingdom which contains organisms with hyphae6. This kingdom contains single celled organisms with no nucleus8. How do fungi reproduce?11. A group smaller than a kingdom but bigger than a class15. This kingdom is made of multicellular organisms will chloroplasts in their cells16. A group of vertebrates covered in wet slimy skin18. The biggest group in taxonomy. There are 5 of them21. What do fungi lack that many plants possess?22. These mammals breathe through a blow hole24. These plants produce seeds inside fruit

Questions: