Energy Flow and Ecosystem

A diagram  that shows how much energy is available at each feeding level in an ecosystem is a(n)

• food chain
• food web
• water cycle
• energy pyramid

Producers capture energy from

• sunlight
• food
• plants
• sugar

Consumers obtain energy by

• eating other organisms
• eating plants
• photosynthesis
• nitrogen

Where is the most energy available on a Energy Pyramid?

• Producer Level
• First Level Consumers
• Second Level  Consumers
• Third Level Consumers

A __________________ is a type of animal that hunts other animals to eat. 

• prey
• herbivore
• predator
• producer

Tick all options that lead to extinction of species

• pollution

• reforestration

• poaching

• selective breeding

• cutting down trees

How much energy would be transferred to the third-level consumer from the 100% energy from the sun?

• 0.01%

• 0.1%

• 1%

• 10%

• 100%

What is a food chain?

• A pyramid that shows all energy flow through an ecosystem

• A linear representation of how energy passes between organisms

• A representation of all the predator-prey relationships in a community.

Why can't the top level of a trophic pyramid contain a large number of organisms?

• Because as energy moves from the bottom to the top level, less and less energy is available to higher levels.
• Because the original energy from producers is the total energy available to all the organisms in the energy pyramid.
• because only about ten percent of the energy available at one level is transferred to the next level.
• all of the above

What is indicated by the diagram?

• Food web
• Food chain
• Food map
• Food menu