1. Classification of Living Things

2. What is classification?
Classification is the grouping of living organisms according to similar structures and functions.

3. Early classification systems
Aristotle grouped animals according to the way they moved

4. The modern classification system :
Developed by Carolus Linnaeus
Consists of 7 levels:
Kingdom
Phylum
Class
Order
Family
Genus
Species

7. Helpful way to remember the 7 levels
King Philip Came Over For Grape Soda.
King Philip Came Over For Green Skittles.

8. Binomial Nomenclature
Developed by Carolus Linnaeus
Two-name system:
First name is the organism’s genus
Second name is the organism’s species

9. Species
The smallest group of organisms classified which can interbreed with each other to produce fertile offspring

10. Six Kingdom System
Bacteria
Archea
Protists
Fungi
Animals
Plants

11. Bacteria
Unicellular, microscopic
No nucleus
Prokaryotic

12. Archea Unicellular, microscopic No nucleus
Prokaryotic
Live in extreme environments

13. Protists Unicellular; microscopic Nucleus present
Eukaryotic
Autotrophic or heterotrophic

14. Fungi Nucleus Eat dead and decaying material
Eukaryotic
Eat dead and decaying material
Reproduce by forming spores

15. Animals
Nucleus
Eukaryotic
Divided into two groups according to the presence or absence of backbone:
Invertebrates : without backbone
Vertebrates : with backbone

16. Invertebrates

17. Invertebrates

18. Invertebrates

19. Vertebrates Divided into 5 groups: Fish Amphibians Reptiles Birds
Mammals

20. Fish Aquatic Cold-blooded Body covered with wet and slimy scales
Streamline body for easy movement through water
Fins for balance and to control movement
Gills for breathing
External fertilization

21. Amphibians Cold-blooded Moist, scaleless skin Limbs present
tetrapods
Larvae (tadpoles) use gills for breathing; adults use lungs
External fertilization

22. Reptiles Cold-blooded Body covered with dry, hard scales Live on land
Breathe with lungs
Internal fertilization; lay shelled eggs

23. Birds Warm-blooded With feathers With wings Beak for feeding
Lungs for breathing
Internal fertilization; lay shelled eggs

24. Mammals Warm-blooded Hairs on skin
Females have mammary glands for producing milk
Lungs for breathing
Diaphragm present
Internal fertilization; embryos develop inside mothers’ bodies

25. Plants Nucleus Plants use photosynthesis to produce food from sunlight
Eukaryotic
Plants use photosynthesis to produce food from sunlight
Can be divided into two groups:
Non-flowering plants
Flowering plants