ecological pyramids

Match each food chain and web component to the correct image.

secondary consumer

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Match each food chain and web component to the correct image.

decomposer

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Select the correct text in the passage.

Which sentences describe decomposers in a food chain?

• They are the final link in the energy flow in a food chain or a food web. They are fungi and animals that feed on dead organic matter.

• Plants produce food or energy from raw materials.

• Plants are also known as autotrophs because they can produce organic compounds from inorganic chemicals.

• Bacteria, fungi, worms, and snails recycle the garbage of dead matter and give back nutrients into the ecosystem.

All food webs and food chains begin with _________________.

• primary consumer
• producers
• secondary consumers
• predators

This diagram shows the amount of energy that moves from one feeding level to another.

• Energy Pyramid
• Food Web
• Ecosystem
• Food Chain

The lion in this picture is a ________.

• Autotroph/Carnivore

• Autotroph/Herbivore

• Heterotroph/Carnivore

• Heterotroph/Herbivore

How much of the energy in each level of a ecological pyramid gets lost as heat or used by the organism so that it cannot be passed on to the next trophic level?

• 80%
• 90%
• 10%
• 20%

What is this called?

• Food Web
• Food Chain
• Abiotic Factors

Where in the food chain will you place a shark?

• producers

• primary consumers

• secondary consumers

• decomposers

Which organism in the food web shown to the right would

contain the lowest concentration of chemical pollutants?

• producers

• primary consumers

• secondary consumers

• tertiary consumers