Use the diagram answer the question.
What is a fitting description for this diagram?

• A Food Chain
• An Ecosystem
• A Food Web
• Biotic and Abiotic Factors

Use the diagram to answer the question.
The Mayfly is a food source for which 3 organisms?

• Frog, Dragon Fly and snake
• Frog, trout and dragon fly
• Frog, salamander and trout
• Frog and phytoplankton

Use the diagram to answer the question.
The trout is a source of food for the human and the eagle. When there are more than one organism vying for the same source we call this____?

• Population
• Resources
• Community
• Competition

What is the best explanation for an energy pyramid?

• It shows the FLOW of energy from one organism to the next. 
• It shows HOW much energy flows through a food web
• It shows the MEMBERS in a single organism

True or False. In this Food Web Pyramid the consumers on each level only get about 10 percent of energy that the plants have stored.

• True
• False

In this Food Web Pyramid what is the proper name for the organisms above the producer level at the bottom.

• herbivores
• consumers
• carnivores 
• omnivores

The deer, grasshopper, and bird are all examples of which type of consumers on this food pyramid?

• decomposers
• omnivores
• carnivore
• herbivore

The snake and the frog, are all examples of which type of consumers on this food pyramid?

• decomposers
• omnivores
• carnivore
• herbivore

In Australia the farmers had a problem with beetles eating the sugar cane. So they introduced the cane toad to control that population. Instead of eating the beetles, they ate the source of food and other organisms. What would be a possible consequence of this?

• The other organisms attacks the toad population
• The ecosystem would be destroyed
• The cane toads would get too much food and die
• The food web was changed by this one organism

About how much percent of energy is passed on from one organism to to the next on a food web pyramid. 

• 100 percent of all energy gets passed
• 45 percent of all energy gets passed
• 10 percent of all energy gets passed
• 0 percent of all energy gets passed