Flow of Energy in the Ecosystem

Which process do plants use to turn sunlight into food energy?

• photosynthesis

• cellular respiration

• transpiration

• evaporation

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Why are mushrooms important to the food chain?

• They recycle nutrients into the ecosystem.

• They produce food energy for other living things.

• They recycle oxygen into the atmosphere.

• They consume excess herbivores in the ecosystem.

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

In the food chain below, which is the producer?

grass --> mouse --> snake --> hawk

• grass

• mouse

• snake

• hawk

Tags

NGSS.MS-LS2-3

Yellowfin tuna, or Thunnus albacores, are large sport fish that are found in tropical and subtropical waters around the world. They typically school under objects such as boats or patches of driftwood for protection from predators. Schooling under these structures also provides yellowfin tuna with easy access to a food source such as smaller herbivorous fish that may be foraging for food around the structures. Which trophic level does yellowfin tuna fill in a food chain?

• producer

• primary consumer

• secondary consumer

• tertiary consumer

What is this an example of?

• Food chain

• Food web

• Energy pyramid

• Energy web

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

What would happen to this food chain if we doubled the population of the rabbits?

• The populations of the snakes and hawks would also increase.

• The populations of the grass, snakes, and hawks would decrease.

• The grass population would decrease. The snake and hawk population would increase.

• The grass and hawk population would decrease. The snake population would increase.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Which most likely caused the rabbit population (light green line) to decrease over the first time unit (0 to 1) in the graph?

• A disease in the rabbit population

• A decrease in the amount of grass available

• A decreasing population of hawks

• A higher population of snakes than normal

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Trapping (or rabbit hunting) has severely reduced the population of rabbits in an ecosystem as shown in the bar graph. What is the most likely effect this will have on other organisms?

• The snake population will decrease while the grass population will increase

• The haw population will increase and the rabbit population will decrease

• The grass population will decrease and the snake population will increase

• The grass, rabbit, snake, and hawk populations will all decrease rapidly

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Transfer of energy from the Sun through the different trophic levels of the biosphere

• Energy Transfer

• Photosynthesis

• Consumer

• Limited Resources

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Substances that provide nourishment essential for growth and the maintenance of life

• Nutrients

• Food

• Water

• Food Chain

Tags

NGSS.MS-LS1-6