Matter and Energy in the Ecosystem

In the food web above, what organism is a tertiary consumer?

• Fox

• Frog

• Vole

• Grass

Tags

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-LS2-3

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

• Producers

• Herbivores

• Carnivores

• Top Predator

Tags

NGSS.MS-LS2-3

If there is 1000 Kcal available in the producers in trophic level 1, how much energy is available in the herbivores in trophic level 2?

• 10 Kcal

• 1 Kcal

• 100 Kcal

• 1000 Kcal

Tags

NGSS.MS-LS2-3

A caterpillar eats a leaf, and a bird eats the caterpillar. In this interaction, the bird is a:

• producer

• herbivore

• primary consumer

• secondary consumer

What are plants called in a food chain?

• Producers

• Consumers

• Decomposers

• Scavengers

Tags

NGSS.MS-LS2-3

In an energy pyramid, energy_______ as you move up the pyramid.

• Increases

• Decreases

• Stays the same

• Changes up and down

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

The diagram shows a food web from a forest ecosystem.

Based on the food web, which is a true statement?

• A decrease in the population of owls may eventually decrease the population of lizards.

• A decrease in the population of beetles may eventually decrease the population of snakes.

• An increase in the population of beetles may eventually decrease the population of snakes and lizards.

• An increase in the owl population may eventually increase the population of snakes and lizards.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

What are always on the first level in a food chain?

• heterotrophs

• autotrophs

• consumers

• herbivores