1. Living Things and the Environment

2. Key Words Habitat Biotic Factors Abiotic Factors Populations Species Community Single Organism Ecology

3. Habitats Organisms live in a specific place within an ecosystem. An organism obtains food, water, shelter, and other things it needs to live, grow and reproduce from its surroundings. This place is known as a habitat.

4. Habitat Example Single ecosystems may contain many habitats. In a forest ecosystem, mushrooms grow in the damp soil, rabbits live on the forest floor, and termites live under the bark of tree trunks Organisms live in different habitats within the ecosystem.

5. Biotic Factors Organism interacts with both the living an non- living things in its environment. The living parts of an ecosystem are called biotic factors. Grass, plants, hawks, eagles, worms, fungi, bacteria – biotic factors

6. Abiotic Factor Non-living parts of an ecosystem Affect living things Abiotic Factors Are: Abiotic Factors Are:WaterSunlightOxygenTemperatureSoil

7. Populations A species is a group of organisms that are physically similar and can reproduce with each other to produce fertile offspring. All species within a particular area are referred to as a population. Example: All the pigeons in New York City all the daises in a field

8. Differences You can not use all the trees in a forest there are different species of trees Areas for population can be as small as a single blade of grass to as big as the entire planet. Populations can move from place to place. Blue fin whales will move to different parts of the ocean.

9. Communities Ecosystems contain more than one type of organism All the different populations that live together in an area make up a community To be considered a community the organisms must live together and interact with each other. They may interact by using the same types of shelter, food, or resources.

10. Level of Organization Smallest unit:living organism Next:Population of species Then:Populations of different species live together in community Finally:The community and the abiotic factors together in ecosystem

12. Illustrate

13. Demonstrate Your Understanding Use the paper plate given to Create Levels of organization Based upon the illustration.