Energy Flow in Ecosystems

What is the process by which plants, algae, and some bacteria use sunlight, carbon dioxide, and water to produce carbohydrates and oxygen?

• Photosynthesis

• Digestion

• Cellular respiration

• Chemosynthesis

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

What type of consumer gets energy by eating other consumers (other animals)?

• Decomposer

• Carnivore

• Omnivore

• Herbivore

What is the simple model that shows how energy is transferred from one organism to the next as each organism eats another organism?

• Food web

• Food chain

• Energy transfer

• Trophic level

Tags

NGSS.MS-LS2-3

What is one of the steps in an energy pyramid?

• Food web

• Trophic level

• Food chain

• Energy pyramid

Tags

NGSS.MS-LS2-3

What is the base of the energy pyramid and contains the most energy?

• Producers

• Secondary consumers

• Primary consumers

• Tertiary consumers

Tags

NGSS.MS-LS2-3

What is the ultimate source of energy for almost all organisms?

• Consumers

• Producers

• Sun

• Bacteria

Tags

NGSS.MS-LS1-6

Match the following

• Autotroph

• Eats only consumers

• Carnivore

• Eats producers and consumers

• Decomposers

• Breaks down dead organisms and the nutrients are recycled into the environment

• Herbivore

• An organism that makes its own food

• Omnivore

• Eats only producers

Tags

NGSS.MS-LS2-3

What happens to the energy as it travels up the food chain?

• It increases the further up the food chain it goes

• It decreases the further up the food chain it goes

• It remains the same at each step of the food chain

• It depends on how many trophic levels there are in the food chain

Tags

NGSS.MS-LS2-3

Label the following:

a

b

c

d

Tertiary consumer

Producer

Primary consumer

Secondary consumer

Tags

NGSS.MS-LS2-3

In the energy pyramid, what is the bottom level composed of?

• Producers

• First-Level Consumers

• Second-Level Consumers

• Third-Level Consumers

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6