Trophic Levels

Less than 0.1% of the energy in a food chain generally makes it from the sun to quaternary consumers.

• true

• false

For the following organisms, choose the correct order of increasing trophic level.

• fungi, deer, wolf and grass

• fungi, grass, wolf and deer

• grass, deer, wolf and fungi

• grass, fungi, wolf and deer

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

Which of the following human activities most likely resulted in the growth of the North American deer population?

• hunting bison

• clearing land for farming

• hunting wolves

• city building

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Energy flow in an ecosystem is best represented by _______.

• the prey/predator relationship

• food chains

• food webs

• autotrophs

Tags

NGSS.MS-LS2-3

Which of the following would not reduce the carrying capacity of an ecosystem for a particular prey species?

• drought

• fewer primary producers

• habitat destruction

• fewer predators

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which is not an advantage of using the Pyramid of Energy?

• It takes into account the rate of production over a period of time.

• Assigning the decomposers and detritivores to a particular trophic level.

• There are no inverted pyramids.

• The input of solar energy can be added.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Organisms produce their own energy or provide energy for other organisms in a food chain. Yellowfin tuna, or Thunnus albacores, are large sport fish 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 smaller fish that may be foraging for food. Which trophic level does yellowfin tuna fill in a food chain?

• producer

• primary consumer

• secondary consumer

• tertiary consumer

Tags

NGSS.MS-LS2-3

Organisms produce their own energy or provide energy for other organisms in a food chain. Many different organisms can be found in the Amazon rainforest in South America. Organisms in this biome include a variety of trees, plants, insects, fish, birds, reptiles, and mammals. The jaguar and anaconda are among the largest predators found in the Amazon. Which trophic level do anacondas and jaguars fill in the Amazon rainforest?

• producer

• primary consumer

• secondary consumer

• tertiary consumer

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

Which best describes the trophic level of an organism?

• number of calories it consumes

• amount of energy it produces

• its life cycle from birth to death

• its position in a food chain

Tags

NGSS.MS-LS2-3