Energy Flow/ Pyramid Review

Which statement is correct about the pyramid of numbers?

• Higher the trophic level, lower the number of species and larger their size.

• Higher the trophic level, higher the number of species and larger their size.

• Higher the trophic level, lower the number of species and smaller their size.

• Higher the trophic level, higher the number of species and smaller their size.

What is the primary function of a consumer in a food chain?

• To produce energy

• To consume producers or other consumers

• To decompose organic material

• To store energy indefinitely

In an energy pyramid, energy_______ as you move up the pyramid.

• Increases
• Decreases
• Stays the same
• Changes up and down

Each level in an ecosystem where organisms share the same role in a food chain

• Energy pyramid

• Trophic level

• Heterotroph

• Food web

All the living (and once living) parts of an environment

• Abiotic

• Autotroph

• Biotic

• Producers

Why are producers found at the base of the pyramid?

• They create all of the energy and therefore have the most energy of all of the trophic levels
• There are more plants than animals. 
• They begin the flow of energy in an ecosystem.
• All of these answers are correct. 

A wolf eats a rabbit, that just ate some berries.  What would you call the rabbit?

• Producer
• Omnivore
• Primary Consumer
• 2nd order Heterotrph

If there is 1000 Kcal available at the producers level, how much energy is available in the primary consumers level?

• 100 Kcal

• 10 Kcal

• 1 Kcal

• 1000 Kcal

A food pyramid represent the relative amount of energy in trophic levels. Which of the following correctly shows a food pyramid?

• A
• B
• C
• D

Which organism has the most energy and which organism has the least amount of energy? Choose the best answer. 

• mosquito and grass
• mouse and grass
• grass and owl
• grass and small bird