How does the function of xylem relate to photosynthesis?

• Xylem transports water to the leaves.

• Xylem transports glucose through the plant.

• Xylem transports oxygen to the leaves.

• Xylem transports carbon dioxide through the plant.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which is the BEST estimate of the amount of energy available at the secondary consumer level?

• 0.1 J

• 10 J

• 100 J

• 10,000 J

Tags

NGSS.MS-LS2-3

Match the correct amount of energy to the trophic level.

• 2,000 J

• Producer

• 20 J

• Tertiary Consumer

• 20,000 J

• Primary Consumer

• 200 J

• Secondary Consumer

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

The diagram shows energy flow in a prairie ecosystem. Which statement BEST explains the flow of energy in the ecosystem?

• A. Energy is not conserved in the ecosystem and surroundings.

• B. The most energy is lost to the environment between secondary and tertiary consumers.

• C. The greatest transfer of energy is from the producers to the primary consumers.

• D. Energy transfer to the coyote would decrease if the coyote preyed directly on prairie dogs.

Tags

NGSS.MS-LS2-3

Which statement BEST describes the transfer of energy from organism to organism as matter moves through a food web?

• Energy moves in both directions between each trophic level.

• Most of the energy is lost to the environment between each trophic level.

• Most of the energy at each trophic level is passed on to the next trophic level.

• The energy available remains the same as matter passes through different trophic levels.

Tags

NGSS.MS-LS2-3

This image shows an energy pyramid in an ocean ecosystem. Which statements about energy use are true and which are false?

Groups:

(a) True

,

(b) False

• Sharks use energy to produce food

• Herring use energy from phytoplankton to produce food

• Zooplankton use energy for growth

• Phytoplankton use energy for growth

• Phytoplankton use energy to produce food

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

In this food chain, what will happen if the frogs become extinct?

• The snakes will increase.

• The grasshoppers will decrease.

• The eagles will remain the same.

• The grasshoppers will increase.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

In the energy pyramid here, which organisms have the most energy available?

• Producers

• Carnivores

• Herbivores

• Top Predator

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

In the energy pyramid below, which organism has the least amount of energy available?

• Producers

• Herbivores

• Carnivores

• Top Predator

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

An energy pyramid represents what?

• How much sunlight is available for the ecosystem to use. 

• How much energy a particular organism needs. 

• How much energy is needed to build a pyramid. 

• The amount of energy available to the next 'feeder' in a food web.

Tags

NGSS.MS-LS2-3