Trophic Levels 10 Percent Rule

According to the image, what is the producer?

• plant

• insect

• mouse

• snake

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

What are "producers" producing?

• the energy for the food chain

• the insects for the food chain

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

The word "primary" means "first."

If that's true, what does primary consumer mean?

Hint: look carefully at the food chain!

• the first organism in a food chain

• the first organism that consumes something else for energy

Tags

NGSS.MS-LS2-3

According to the image, what is the primary consumer in the food chain?

• plant

• insect

• mouse

• snake

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-2

According to the image, what is the secondary consumer?

• plant

• insect

• mouse

• snake

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-2

What kind of organisms are usually primary consumers?

• plants

• herbivores

• carnivores

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-2

What kind of organisms are usually at the top of the food chain?

• producers

• herbivores

• omnivores

• carnivores

Tags

NGSS.MS-LS2-3

Look carefully at the image. If energy is lost as it moves up the food chain, what trophic level has the most amount of energy?

• 1st level - producers

• 2nd level - primary consumers

• 3rd level - secondary consumers

• 4th level - tertiary consumers

Tags

NGSS.MS-LS2-3

The efficiency of energy transfer from a lower trophic level to the next highest level is roughly

• 1%
• 10%
• 100%
• 1000%

Tags

NGSS.MS-LS2-3

Trophic levels are represented by 

• squares
• circles
• pyramids
• lines