1. What are the two ways that autotrophs obtain energy? 2 ...
Transcript of 1. What are the two ways that autotrophs obtain energy? 2 ...
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1. What are the two ways that autotrophs obtain energy?
2. What is the difference between decomposer and detritivore?
3. How many species make up a population?
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Categorizing Ecology
• Photo = Light
• Synthesis = To make
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Categorizing Ecology
• Chemo = Chemicals
• Synthesis = To make
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Categorizing Ecology
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Categorizing Ecology
Decomposers BREAK DOWN dead organic matter and recycle the nutrients back into the environment
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Categorizing Organisms
• Detritivore- internal digestion
• Decomposer- external digestion by chemically breaking down decay (organic matter)
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Categorizing Organisms
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• Energy in an ecosystem starts with an abiotic factor (sun or chemicals) and is CAPTURED by autotrophs
Energy Flow in Ecosystems
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• Autotrophs are then consumed by heterotrophs
Energy Flow in Ecosystems
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• What eats the herbivores?
Energy Flow in Ecosystems
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Energy Flow in Ecosystems
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Energy Flow in Ecosystems
• Where do decomposers fit into the trophic levels?
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Energy Flow in Ecosystems
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• Food chains show the flow of energy in ecosystems in one direction, from producers to consumers
Energy Flow in Ecosystems
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• In groups write a food chain out of the following organisms:
1. Bird
2. Berry
3. Fox
4. Insects
Energy Flow in Ecosystems
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Energy Flow in Ecosystems
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• Food webs show every feeding interaction in an ecosystem
Energy Flow in Ecosystems
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• In groups write a food web out of the following organisms:
Energy Flow in Ecosystems
1. Bird2. Cherry Tree3. Earth Worm4. Squirrel5. Rabbit
6. Frog7. Eagle8. Fox9. Butterfly10. Snake
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Energy Flow in Ecosystems
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• Another way of modeling the flow of energy is through a pyramid of energy
Energy Flow in Ecosystems
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• There are 3 kinds of ecological pyramids
- Energy
- Biomass
- Numbers of organisms
Energy Flow in Ecosystems
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• Biomass: total amount of living tissue measured in grams
Energy Flow in Ecosystems
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Energy Flow in Ecosystems
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• You will complete the pyramid activity to understand what each one models
Energy Flow in Ecosystems