Quiz: Food Chains, Food Webs, and Energy Pyramids

In a food chain, what do the arrows represent?

• The movement of animals in an ecosystem

• The direction of energy flow

• The number of organisms in each level

• The size of each population

A hawk eats a snake that has eaten a mouse. What level of the food chain is the hawk?

• Producer

• Primary consumer

• Secondary consumer

• Tertiary consumer

What happens to the amount of available energy as you move up an energy pyramid?

• It increases

• It stays the same

• It decreases

• It disappears

What role do decomposers play in an ecosystem?

• They create energy for plants

• They break down dead organisms and recycle nutrients

• They only eat plants

• They store energy at the top of the energy pyramid

The relationship between ALL the organisms in a community showing who eats whom is called a:

• Food Web

• Food Chain

• Abiotic Factors

• Biotic Factors

Which of the following lists only include the biotic (living) parts of an ecosystem?

• Water, fish, lily pads, frogs, sunlight

• Worms, soil, ferns, ladybugs, rain

• Zebras, grasses, giraffes, lions, trees

• Sunlight, flowers, ladybug, snail, hawk

Which of these are abiotic (nonliving) factors?

• Bacteria

• Sloth

• Soil

• Pine tree

Where does the energy that travels through an ecosystem originally come from?

• Earth's Core

• Plants

• Water

• The Sun

One path that energy could take through an ecosystem is called a:

• Food Web

• Food Chain

• Abiotic Factors

• Biotic Factors

A second-level (secondary) consumer CANNOT be which type of consumer?

• Carnivore

• Herbivore

• Omnivore

• Producer