5.2 Food Webs Lesson

Food Webs

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Multiple Choice

What is a producer?

• Organism that makes its own energy

• Organism that breaks down dead organisms

• Organism that eats other organisms for food & energy

Multiple Choice

What is an omnivore?

• An organism that only eats plants for energy
• An organism that eats animals for energy
• An organism that eats both plants and animals for energy.

Multiple Choice

What is a carnivore?

• An organism that only eats plants for energy

• An organism that eats animals for energy

• An organism that eats both plants and animals for energy.

Multiple Choice

What is an herbivore?

• An organism that only eats plants for energy

• An organism that eats animals for energy

• An organism that eats both plants and animals for energy.

Multiple Choice

What is a consumer?

• Organism that makes its own energy

• Organism that breaks down dead organisms

• Organism that eats other organisms for food & energy

Multiple Choice

The ___% rule states that only ____% of energy is transferred to the next trophic level.

• 10%

• 25%

• 50%

• 100%

Multiple Choice

What are "trophic levels"?

• Levels in a food web/food chain

• Levels of land in a mountain

• Animal diets

Multiple Choice

Fungi: Producer, consumer or decomposer?

• Producer

• Consumer

• Decomposer

Multiple Choice

Grass: Producer, consumer or decomposer?

• Producer

• Consumer

• Decomposer

Food Webs

Overlapping Food Chains within an Ecosystem.

Food Chains

• one single path of energy flow within an ecosystem

• Example: Tundra

• What is the producer?

• How do producers get their food?

Scavengers/Decomposers

• What role do scavengers have?

• Who is the Scavenger?

• Who is the decomposer in this food chain?

Multiple Choice

Who is the first level consumer in this food chain?

• wolf

• mushroom

• arctic moss

• caribou

Fill in the Blank

The ___________ is the decomposer for this tundra food chain.

Multiple Choice

Who is the top predator in this tundra food chain?

• wolf

• caribou

• reindeer moss

• bird

Food Webs

• overlapping food chains

• organisms usually eat more than one type of food

• food webs are more accurate pictures of what happens in different ecosystems

• ARROWS: show energy flow

Multiple Select

Click on the producers in this food web.

• oak acorns

• kinglet

• red-tailed hawk

• pine tree

Multiple Select

Click on all of the primary consumers in this food chain.

• corn snake

• pine-borer insect

• mouse

• red-tailed hawk

Open Ended

Write one food chain within this web. START with a producer.

Open Ended

Why do you think the arrows pointing toward the decomposers are blue?

​Food Chains

Multiple Choice

Which way does the arrow point in a food chain/web?

• prey -> predator

• prey <- Predator

• prey<--> Predator

• producer <- Consumer

Multiple Choice

Which level of the energy pyramid has the most stored energy?

• Producers

• Primary Consumer

• Secondary Consumer

• Tertiary Consumer

Multiple Choice

Most of the energy found on earth originates from

• Plants

• Consumers

• Decomposers

• The sun