Review for Test- Food Chains, Webs, & Energy Pyramids

Multiple Choice

Which of the following organisms is a producer?

• the sun

• the leaves

• the slug

• the heron

Multiple Choice

What percentage of energy in kcal is found at trophic level #3?

• 5000 kcal

• 5 kcal

• 0.005 kcal

• 50 kcal

Multiple Choice

An organism that gets energy from breaking down dead organisms, non-living material or waste is a(an) ___________.

• producer

• consumer

• decomposer

• autotroph

Multiple Choice

All first level consumers are ________________

• producers

• herbivores

• carnivores

• decomposers

Multiple Choice

Consumers that eat both plants and animals are called ________________.

• producers

• herbivores

• carnivores

• omnivores

Multiple Choice

The fungi shown below in the picture are decomposers. Decomposers are an important part of an ecosystem because they __________________.

• produce oxygen

• provide food for carnivores

• break down dead organisms

• convert sunlight to food energy

Multiple Choice

If the mice were completely removed from the food chain, which of the following would be the most affected?

• the snake

• the hawk

• the rabbit

• the cow

Multiple Choice

What is the role of a consumer in the flow of energy through a food chain?

• Obtaining necessary nutrients from the soil

• Transforming the Sun’s energy to make food

• Gaining energy by eating other living things

• Decomposing the remains of living things

Multiple Choice

How does a food chain compare to a food web?

• a food web is only one possible path of energy

• a food chain describes the flow of electricity

• a food chain is all the possible paths of energy

• a food web consists of more than one food chain mixed together.

Multiple Choice

Which of the following correctly shows how energy flows through a food chain?

• carnivore---> producer---> herbivore

• Sun---> producer---> herbivore---> carnivore

• Sun---> herbivore---> carnivore---> producer

• producer---> carnivore---> herbivore

Multiple Choice

From where does the energy that a herbivore uses come?

• from radiant energy from the sun

• from chemical energy stored in producers (plants)

• from H.E.B.

• from the meat in carnivores

Multiple Choice

The organisms that receive the most energy in the energy pyramid shown below are the ___________________.

• producers

• 1st level consumers

• 2nd level consumers

• 3rd level consumers

Multiple Choice

Autotrophs....

• make their own food

• are the base of the food chain

• are producers

• all of the above

Multiple Choice

As energy passes on from one level to another, by how much percentage is it decreasing?

• 0.1 %

• 100 %

• 10 %

• 1 %

Multiple Choice

What does an arrow represent in a food web?

• who eats what

• the flow of energy

• consumers

• producers

Multiple Choice

All of the living and nonliving things in an area that depend on each other are part of a(n):

• habitat

• ecosystem

• food web

• biome

Multiple Choice

What would happen if the fish in the following food web were to go extinct?

• Nothing would happen. The food web would be the same.

• The whole food chain would be destroyed

• The food web would become unbalanced, and it could reestablish differently.

• All the animals would die.

Multiple Choice

A person who eats a chicken which feeds on grains is considered what type of consumer?

• producer

• primary consumer

• secondary consumer

• tertiary consumer

Multiple Choice

An organism that feeds on animals that are already dead is called a...

• producer

• consumer

• scavenger

• none of the above

Multiple Choice

What real life situation can affect food webs?

• Wildfires burning an ecosystem down

• People eating a lot

• Not watering plants

• Nothing can affect it