Energy Pyramids

A pyramid shape is used to show the amount of available energy at each trophic level because... 

• energy decreases as you go up the food chain, just like the pyramid shape gets smaller as you go up. 
• energy increases up the food chain just like the pyramid shape gets smaller as you go up. 
• energy amounts are the same at each trophic level

Tags

NGSS.HS-LS2-4

If only 10% of an organism's energy is available for the next trophic level, what happens with the other 90% of the energy?

• It is destroyed after it is used up.

• It is used for life processes or lost as body heat (metabollic waste)

• It remains for the next trophic level IF the predator consumes ALL of the organism.

• It is lost completely as body heat.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

In this energy pyramid, what is the proper name for ANY ORGANISM ABOVE THE PRODUCER LEVEL?

• decomposers
• consumers
• producers
• omnivores

Tags

NGSS.MS-LS2-3

About how much percent of energy is passed on from one organism to to the next on an energy pyramid?

• 100 percent of all energy gets passed
• 45 percent of all energy gets passed
• 10 percent of all energy gets passed
• 0 percent of all energy gets passed

What makes an energy pyramid different than a food web or chain?

• It shows energy flowing from the top of the chain and downward. 
• The tropic levels are the opposite
• It shows the amount of energy in each trophic level
• It shows specific predator/prey relationships

Tags

NGSS.MS-LS2-3

Why are producers found at the base of the pyramid?

• They capture 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.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is the sun's role in the energy pyramid?

• to produce chemical energy for the ecosystem.
• to provide radiant energy for producers to convert to chemical energy. 
• to start the energy flow of the ecosystem. 
• to provide mechanical energy for producers to convert to chemical energy. 

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What form of energy is in the food organisms consume?

• chemical energy
• thermal energy
• mechanical energy
• radiant energy

Tags

NGSS.MS-LS1-7

The diagram represents a model of a food pyramid.  Which statement best describes what happens in this food pyramid?

• More organisms die at higher levels than at lower levels, resulting in less mass at higher levels.
• Energy is lost to the environment at each level, so less mass can be supported at each higher level.
• When organisms die at higher levels, their remains sink to lower levels, increasing the mass of lower levels.
• Organisms decay at each level, and thus less mass can be supported at higher levels

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which organism in figure 1 contains the most available energy?

• plants
• mountain lions
• hawks
• none of the above

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3