1. Ecosystems, Week Two Ms. Clodfelter 8 th grade science

2. Review Question One Which would most likely limit the growth of plants living in the desert? a.Lack of water b.High temperatures c.High intensity of light d.Lack of photosynthesis

3. Answer a. Lack of water

4. Review Question Two Which would a drought most likely affect? a.All organisms in a particular ecosystem b.Only the plants in a particular ecosystem c.Only the animals in a particular ecosystem

5. Answer a. All the organisms in a particular ecosystem

6. Review Question Three Which would happen to fish in a pond where the population of algae increases? a.A decrease in oxygen causes many fish to die b.An increase in nutrients allows for healthier fish c.A decrease in nutrients causes fish to become malnourished

7. Answer a. A decrease in oxygen causes many fish to die

8. Vocab Words Coexistence - in ecology, a term that describes when organisms with similar needs for shelter and food are able to live in a habitat and benefit Coexistence - in ecology, a term that describes when organisms with similar needs for shelter and food are able to live in a habitat and benefit Cooperation - when one or more organisms is able to mutually live in a common environment and benefit each other Cooperation - when one or more organisms is able to mutually live in a common environment and benefit each other Competition - when one or more organisms is competing for a limited amount of resources in a particular area Competition - when one or more organisms is competing for a limited amount of resources in a particular area Parasitism - a form of symbiosis in which one of two participants benefits at the expense of the other Parasitism - a form of symbiosis in which one of two participants benefits at the expense of the other Mutualism - a form of symbiosis in which both participants benefit. Example is a clown fish living in an anemone. Mutualism - a form of symbiosis in which both participants benefit. Example is a clown fish living in an anemone. Autotrophs - a plant that can make its own food Autotrophs - a plant that can make its own food Aquatic ecosystem - an ecosystem in a body of water; contains marine and freshwater Aquatic ecosystem - an ecosystem in a body of water; contains marine and freshwater Foodweb - an interconnection of food chains and their predator/prey relationships Foodweb - an interconnection of food chains and their predator/prey relationships Trophic Level - the position an organism occupies in a food chain Trophic Level - the position an organism occupies in a food chain

9. Term Practice Take 10 minutes to make a review table for weekly terms Take 10 minutes to make a review table for weekly terms Column One- Term Column One- Term Column Two- Definition Column Two- Definition Column Three- Example Column Three- Example

10. Review/Recap: BIOMES https://www.youtube.com/watch?v=hIy0ZlyPPDg

11. Biome Webquest Review Expectations Review Expectations What quality work looks like What quality work looks like

12. Questions/Wrap Up