Energy Flow in Ecosystems

Photosynthesis is one process of ...

• Secondary Productivity

• kcal

• Primary Productivity

• Chemosynthesis

Tags

NGSS.MS-LS1-6

Net primary productivity is ...

• the total rate of productivity minus the energy used up by respiration

• the total rate of productivity plus the energy used by respiration

• The total rate of productivity

• measured in kcal/m^2/year

Tags

NGSS.HS-LS2-4

NGSS.HS-LS2-5

An oak forest takes in 167,000 kcal/m^2/year. 73,000 kcal of energy is lost to respiration, while the rest is stored.

What is the GROSS primary productivity?

• 73,000 kcal/m^2/year

• 240,000 kcal/m^2/year

• 167,000 kcal/m^2/year

• 94,000 kcal/m^2/year

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

A lizard eats a cricket which eats grass.

What trophic level is the lizard?

• Primary Producer

• Primary Consumer

• Secondary Consumer

• Tertiary Consumer

Tags

NGSS.MS-LS2-2

Earthworms are considered

• a primary consumer

• an apex predator

• a primary producer

• A decomposer

Tags

NGSS.MS-LS2-3

Humans are generally considered

• Apex predators

• Tertiary consumers

• primary producers

• primary consumers

Tags

NGSS.MS-LS2-2

What trophic level is positioned at the bottom of the pyramid?

• decomposers

• primary consumers

• primary producer

• Sunlight

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which can be considered primary producers?

• Stone

• Algae

• Trees

• Grass

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What percent (%) of energy is transferred from one trophic level to the next?

• 5%

• 10%

• 15%

• 20%

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Where does the loss of energy go after traveling between trophic levels?

• locomotion

• back home

• Sunlight

• Heat

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3