Ecology Review

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  • 1. Ecology Review Chapter 5, Lessons 1-6
  • 2. Organisms  An organism is any living things. – This includes plants, animals, bacteria, and even fungi. – All organisms are also biotic.  Can you list some organisms that you know of?
  • 3. Populations  Many populations make up the living parts of an ecosystem.  A population is a group of organisms of one species that live in an area at the same time.  A population may be all the pine trees or all the squirrels in an area.
  • 4. Community  A community is made up of all the populations in an area.  Members of a community depend on each other to fill needs, such as food and shelter.  In other words, a community is all the living things in an area and they all depend on each other.
  • 5. Organism Population Community
  • 6. Biomes  A biome is a large ecosystem with generally the same climate and organisms.  All the biomes together create the biosphere. (The part of Earth in which all living things are located.)  There several types of biomes.
  • 7. Types of Biomes
  • 8. Habitats  A habitat is the place in which an organism lives. – Made up of the soil, air, and water, as well as the plants of the area. – What is your habitat made up of?  A niche is the role or job of a specific organism. – Each organism has a specific niche. – The niche of a spotted owl in his habitat is that of a hunter. – What is the niche of a mushroom?
  • 9. Name the Niche
  • 10. Food Chains  A food chain is the transfer of energy through a series of organisms that use each other as food. – Producers: organisms that make their own food. – Consumers: organisms that get their food from eating other organisms.  Herbivores: eat only plants.  Omnivores: eat plants and animals.  Carnivores: eat only animals.
  • 11. Food Webs  A food web is all the food chains in a particular place tied together.
  • 12. Energy Pyramids  An energy pyramid is a diagram that shows the amounts of energy that flows through each level of a food chain.  Example: – Plants get energy from the sunlight. They store some of it. – Hares (herbivores) get energy from the plants. Only a small amount of this energy is stored. – Owls get energy from eating animals. Only a small fraction of this energy is stored.
  • 13. Cycles  A cycle is a repeating process or flow of material through a system. – Nitrogen Cycle – Carbon/Carbon Dioxide Cycle
  • 14. Nitrogen Cycle
  • 15. Carbon Cycle
  • 16. Credit Slide  All information was retrieved from Scott Foresman Chapter 5, Lessons 1-6  All pictures were retrieved from a Yahoo Search.