12C : Chains / Webs / Pyramids

Which organism is the carnivore?

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All food webs and food chains begin with _________________.

• primary consumer
• producers
• secondary consumers
• predators

What percentage of energy is passed on to each tropic level?

• 10%
• 50%
• 90%
• 100%

Which organism do the owl and the weasel compete for in the food web?

• Hawk
• Spider
• Grasshopper
• Shrew

Which organism recieves the least amount of energy from the producer?

• Owl
• Grasshopper
• Lilypad
• Mouse

Which level will contain plants?

• A
• B
• C
• D

In a food web, arrows point at:

• who gets energy.
• who gets eaten.

All energy on Earth ultimately comes from what source?

• Water
• Sun
• Consumers
• Oxygen

Grizzly bears eat seeds, berries, roots, grasses, fungi, deer, elk, fish, and insects. This would make them a(n)...

• Detritivore

• Carnivore

• Herbivore

• Omnivore

An organism that eats the secondary consumer.

• Primary Consumer
• Secondary Consumer
• Tertiary Consumer
• Consumer