Food Chains

The diagram shows an example of what kind of organism

• Autotroph
• Heterotroph
• Decomposer
• Herbivore

Which animal is a tertiary consumer?

• Jackal
• Wild Cat
• Lion
• Owl

Tags

NGSS.MS-LS2-3

What does the arrow in a food chain or food web mean?

• A series of steps in which organisms transfer (move) energy by eating and being eaten.
• An organism that breaks down wastes and dead organisms.
• Shows what eats what and consists of many food chains in an ecosystem
• The transfer (movement) of energy.

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

In the energy pyramid here, how much of the energy in each level gets lost as heat or used by the organism for survival?

• 80%
• 90%
• 10%
• 20%

Tags

NGSS.MS-LS2-3

The arrows in a food chain or web represents what?

• They point to the organism that is being eaten.
• It shows how sunlight flows within an ecosystem.
• They show what direction the energy is flowing between organisms. 
• They represent how water is transferred within a habitat.

Tags

NGSS.MS-LS2-3

Biomass refers to

• Chemical Energy
• Light Energy
• Rank in the feeding heirarchy
• Amount of living tissue in an ecosystem

Tags

NGSS.MS-LS2-3

Which of the following would provide the most energy in an ecosystem?

• Producers
• Herbivore
• Omnivore
• Carnivore

Tags

NGSS.MS-LS2-3

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

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

Observe the food chain below. What would be the result of disease killing off most of the mouse population?

• All populations would be relatively unaffected

• The grasshoppers would become extinct

• The grasshopper population would decrease; the owl population would increase

• The grasshopper population would increase and the owl population would decrease

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4