Energy and Matter Flow Through Organisms

Which of the following is NOT a heterotroph?

• Producers

• Consumers

• Herbivores

• Carnivores

Which type of consumer eats dead/decaying organisms?

• Herbivores

• Carnivores

• Omnivores

• Detritivores

Why does energy decrease as you move up a food chain?

• Organisms get larger, so energy decreases

• Energy is lost as heat as you move up a food chain

• There are more organisms as you move up a food chain

• There are more resources as you move up a food chain

Tags

NGSS.MS-LS2-3

How much energy moves on to the next trophic level?

• 100%

• 90%

• 10%

• 1%

Tags

NGSS.MS-LS2-3

If producers get 100% of the energy, secondary consumers get _______ of the energy

• 100%

• 10%

• 1%

• 0.1%

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Which group of organisms have the largest biomass in this meadow environment?

• deer

• wolves

• mice

• grasses

Tags

NGSS.MS-LS2-1

Cows eat grass and then various animals consume cows. The amount of energy available to the consumers is lower than the amount of energy available to the cow because cows

• reproduce rapidly, passing on energy to their offspring

• convert solar energy to food

• store all their energy in milk

• use energy for their own functions throughout life

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-1

The bar graph shows the biomass of 4 different populations in a community. Which population is probably made of producers?

• A

• B

• C

• D

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

NGSS.MS-LS2-1

What is the fundamental difference between matter and energy?

• Matter is cycled through ecosystems; energy is not.

• Energy is cycled through ecosystems; matter is not.

• Energy can be converted into matter; matter cannot be converted into energy.

• Matter can be converted into energy; energy cannot be converted into matter.

Tags

NGSS.HS-LS2-3

Decomposers are important to ecosystems because they _________________.

• change chemical substance from producers

• are at the highest level of the energy pyramid

• make nutrients available for producers to reuse

• convert light energy into sugars through photosynthesis

Tags

NGSS.MS-LS2-3