Ecology Lesson 6 How does energy flow through an ecosystem? What energy roles do organisms play in an ecosystem? How much energy is available at each level.

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Presentation transcript:

Ecology Lesson 6 How does energy flow through an ecosystem? What energy roles do organisms play in an ecosystem? How much energy is available at each level of the energy pyramid?

Do Now Food you ate yesterday PlantAnimalOther List the 3 foods you ate yesterday in the first column. For each food, mark an x in the box if it came from a plant, animal, or other.

Essential Questions 1.What energy roles do organisms play in an ecosystem? 2.How does energy flow through an ecosystem? 3.How much energy is available at each level of the energy pyramid?

Vocabulary Producer Consumer Herbivore Carnivore Omnivore

Vocabulary Scavenger Decomposer Food chain Food web Energy pyramid

Assignment 1.Read page Complete the graphic organizers.

What energy roles do organisms play in an ecosystem? Use pages Producers Consumers Decomposers

What energy roles do organisms play in an ecosystem? Use pages Producers-An organism that can make its own food. -Producers are the source of all food in a ecosystem. Consumers- Feed on others -herbivores -carnivores -omnivores -scavengers DecomposersNature’s recycler Break down wastes and dead organisms and return the raw material to the ecosystem.

How does energy flow through an ecosystem? Use pages Food ChainFood Web

How does energy flow through an ecosystem? Use pages Food ChainFood Web -Series of events in which one organism eat another and obtains energy. -First organism is always a producer. -Second organism (first level consumer) feeds on producer. -Second level consumer feeds on first level consumer. -A food web consists of many interconnected food chains. -More realistic -Organism may play more than one role.

Draw your own food chain or web.

How much energy is available at each level of the energy pyramid? Use pages Place the terms in the correct space. 1.Most energy available 2.Least energy available 3.producer 4.consumer 5.top consumer

How much energy is available at each level of the energy pyramid? Use pages Place the terms in the correct space. 1.Most energy available 2.Least energy available 3.producer 4.consumer 5.top consumer producer top consumer consumer Least energy available Most energy available

Assignment 1.Read science explorer page Complete Science explorer pages \..\Ecology\ecology\ doc 3. Complete for homework if you do not finish in class.

Answer the essential questions.

Summarization Activity Complete the science explorer page 112.