Classification

1. Classification

2. Living and Non living • Living = alive - individual living things are called organisms • Dead = was once alive • Non living = was never alive

3. Organisms • Plants • algae and fungi • mosses and ferns • conifers and flowering plants • Animals • worms, snails, insects • reptiles, amphibians • mammals, birds • Microorganisms

4. MRS GREN • Living organisms carry out the life functions. The life functions are shown below and can be remembered using the acronym MRS GREN Movement Respiration Sensitivity Growth Reproduction Excretion Nutrition

5. Movement • A plant can move parts slowly, animals can move their whole body or limbs quickly

6. Respiration • Organisms are able to get energy out of food by a process called respiration

7. Sensitivity • Living things can detect and respond to changes in their environment

8. Growth • All living things change over time – this may be changes in a life cycle or size

9. Reproduction • Living things are able to produce new offspring which are similar to parents

10. Excretion • Living things are able to dispose of poisonous wastes produced internally

11. Nutrition • Living things are either able to make their own food (producers) or get food by eating others (consumers & decomposers)

12. Nutrition - Food Types • Scientists have grouped together different sorts of plants and animals depending on the food they live on and how they get it • The three types of organism are: • Producers • Consumers • Decomposers

13. Producers • Plants - produce their own food by the process of photosynthesis

14. Consumers • Use other living things as food. They may eat: • plants (herbivores) or • animals (carnivores), or • both (omnivores)

15. Decomposers • These organisms feed off dead plants or animals • eg. Worms, bacteria, fungi • they are important in recycling dead organisms into nutrients for plants

16. Types of nutrition