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Energy Flow
Sunday, March 24, 13
Energy Transfer
• Food Chains• Food Webs• Energy Pyramids
How energy (food, nutrients) move through an ecosystem
Sunday, March 24, 13
Energy Pyramid
Shows how energy moves through an ecosystem.
Each level has less than the level below.
called Trophic levels.
Sunday, March 24, 13
Trophic Levels
Sunday, March 24, 13
Trophic LevelsEnergy moves from one organisms to another when it is eaten
Sunday, March 24, 13
Trophic LevelsEnergy moves from one organisms to another when it is eaten
Each step in this transfer of energy is know as a trophic level
Sunday, March 24, 13
Trophic LevelsEnergy moves from one organisms to another when it is eaten
Each step in this transfer of energy is know as a trophic level
The main trophic levels are producers, consumers, and decomposers
Sunday, March 24, 13
Sunday, March 24, 13
Sunday, March 24, 13
Producers
Sunday, March 24, 13
• A groups of organisms that can use the energy in sunlight to convert water and carbon dioxide into Glucose (sugar/food)
Producers
Sunday, March 24, 13
• A groups of organisms that can use the energy in sunlight to convert water and carbon dioxide into Glucose (sugar/food)
• Called Producers because they produce all of the food that consumers use
Producers
Sunday, March 24, 13
• A groups of organisms that can use the energy in sunlight to convert water and carbon dioxide into Glucose (sugar/food)
• Called Producers because they produce all of the food that consumers use• Without producers, there would be no life on this planet
Producers
Sunday, March 24, 13
• A groups of organisms that can use the energy in sunlight to convert water and carbon dioxide into Glucose (sugar/food)
• Called Producers because they produce all of the food that consumers use• Without producers, there would be no life on this planet• not all producers have leaves but all use photosynthesis
Producers
Sunday, March 24, 13
• A groups of organisms that can use the energy in sunlight to convert water and carbon dioxide into Glucose (sugar/food)
• Called Producers because they produce all of the food that consumers use• Without producers, there would be no life on this planet• not all producers have leaves but all use photosynthesis
• Plants and Algae
Producers
Sunday, March 24, 13
Sunday, March 24, 13
Sunday, March 24, 13
Sunday, March 24, 13
Sunday, March 24, 13
Consumer
Sunday, March 24, 13
Consumer
Sunday, March 24, 13
Consumer• Organisms that do not make their own food
Sunday, March 24, 13
Consumer• Organisms that do not make their own food• Must eat to survive
Sunday, March 24, 13
Consumer• Organisms that do not make their own food• Must eat to survive• Consumer because they consume other
organisms in order to live
Sunday, March 24, 13
– feed on the tissue of dead organisms (both plants and animals)
Vultures, Crows, and Shrimp
Scavengers
Sunday, March 24, 13
– feed on the tissue of dead organisms (both plants and animals)
Vultures, Crows, and Shrimp
Scavengers
Sunday, March 24, 13
Consumers which eat ONLY plantshave flat teeth good for grinding food
Herbivores
Sunday, March 24, 13
Consumers which eat ONLY plantshave flat teeth good for grinding food
Herbivores
Sunday, March 24, 13
CarnivoresConsumers which eat mostly meat
have sharp teeth good for ripping and tearing meat
Sunday, March 24, 13
CarnivoresConsumers which eat mostly meat
have sharp teeth good for ripping and tearing meat
Sunday, March 24, 13
Consumers which eat BOTH plants and animalshave both types of teeth
Omnivores
Sunday, March 24, 13
Consumers which eat BOTH plants and animalshave both types of teeth
Omnivores
Sunday, March 24, 13
consumers which absorb any dead material and break it down into simple nutrients or fertilizers
Essential to making soil rich enough to support producers!
Decomposers
Sunday, March 24, 13
consumers which absorb any dead material and break it down into simple nutrients or fertilizers
Essential to making soil rich enough to support producers!
Decomposers
Sunday, March 24, 13