Flow of Matter and Energy in the Ecosystem

Put the levels from largest to smallest

• Biosphere

• Biome

• Population

• Community

• Ecosystem

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-LS1-6

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

What is it called when plants give off water vapor as a waste product?

• condensation
• evaporation
• sublimation
• transpiration

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

On average, how much of the available energy from one trophic level is transferred to the next trophic level in a food chain?

• 10%

• 25%

• 50%

• 90%

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is indicated by the diagram?

• Food web
• Food chain
• Food map
• Food menu

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

Autotrophs are organisms that produce their own food. Which do scientist classify as autotrophs?

• Chordates
• Fungi
• Plants
• Molds

Tags

NGSS.MS-LS1-6