To Start

Can you Identify each of the organisms in the pictures?

What characteristics allow you to identify them?

Learning Objectives

• Describe the systems we use for the classification of organisms

• Design a Dichotomous Key

• Explain why it is important to have a standardised system for classifying organisms

Systems of Classification

• Library Books

Systems of Classification

• Car registration plates

Systems of Classification

• Nationality

Classification of Organisms

• Eukarya• Animalia• Chordata• Chondrichthyes• Lamniformes• Lamnidae• Carcharodon• carcharias

Dichotomous Key

Classification and Taxonomy

The process of categorising living things and naming them

e.g. Lion Panthera leo –

Mammal, Animal Kingdom

Classifying Mr Men1. Mr Bump2. Mr Tickle3. Mr Strong4. Mr Daydream5. Mr Sneeze6. Mr Forgetful7. Mr Happy 8. Mr Greedy9. Mr Nosey10. Mr Bounce11. Mr Slow12. Mr Nonsense13. Mr Mischief14. Mr Busy15. Mr Fussy16. Mr Messy17. Mr Clever18. Mr Skinny19. Mr Lazy20. Mr Worry21. Mr Tall22. Mr Mean23. Mr Perfect24. Mr Dizzy

Questions to Finish

1. Define the word ‘Classification’

2. Define the word ‘Variation’

3. Explain why the Classification of all living organisms is important

4. Why is it important to use a standardised method of classificating organisms? What does this mean?

5. Why does variation amongst species make classification difficult?

A Dichotomous Key

Why Do We Need Dichotomous Keys?

There are approximately 275

species of Turtle and they all look very

similar!