Energy Flow

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

NGSS.MS-LS1-6

In the energy pyramid here, how much of the energy in each level gets lost as heat or used by the organism for survival (metabolism/digestion/etc.)?

• 80%
• 90%
• 10%
• 20%

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

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

NGSS.MS-LS1-6

Organisms that create their own energy from sunlight or chemicals

• Herbivore
• Omnivore
• Autotroph
• Heterotroph 

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

What does a food web represent?

• All connections of energy flow throughout all organisms in a habitat.
• The specific ways that mutualism is carried out.
• A single pathway or energy flow between organisms. 
• How carnivores get their food. 

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

NGSS.MS-LS2-2

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

• Producers
• Herbivore
• Omnivore
• Carnivore

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

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

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

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-2

Which of these best explains why predators need plants, such as grass, in their ecosystem?

• Plants are a large part of their diets
• Plants provide safety for predators
• Plants break down the organisms that the predators eat
• Plants provide food for their animals that the predators eat

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

An organism that eats both plants and animals are know as a 

• Carnivore
• Omnivore
• Herbivore
• Decomposer

What is the ultimate source of energy for all food webs (even though it may not be shown)?

• Plants
• Sunlight
• Mineral in the soil
• Decomposers

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6