Primary Productivity

__________ primary productivity is the total amount of energy that producers convert to chemical energy in organic molecules per unit of time.   

• Net
• Total
• Gross
• None of the above

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

__________productivity = the organic materials that remain after photosynthetic organisms in the ecosystem have used some of these compounds for their cellular energy needs (cellular respiration).

• Gross
• Primary
• Net
• Secondary

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-5

Autotrophs

• use photosynthesis.

• are at the top of the food chain.

• are able to survive without oxygen.

• cannot assimilate carbon.

• are primary consumers.

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

If gross primary productivity in a wetland is 3 kg C/m^2/year and respiration is 1.5 kg C/m^2/year, what is the net primary productivity of the wetland?

• Impossible to determine from the given information

• 3 kg C/m^2/year

• 1.5 kg C/m^2/year

• 2 kg C/m^2/year

• 4.5 kg C/m^2/year

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-4

NGSS.HS-LS2-5

If the amount of dissolved oxygen in the light bottle used for the investigation in the lesson does not change, an explanation for this is

• The rates of photosynthesis and respiration are equal

• photosynthesis is not occurring

• Respiration is not occurring

• no photosynthesis occurred

Tags

NGSS.MS-LS1-6

The biomass available for consumption by the herbivores and the decomposers is called

• Net primary productivity

• Secondary productivity

• Standing crop

• Gross primary productivity

Tags

NGSS.HS-LS2-3

NGSS.HS-LS2-4

Which ecosystem would have the greatest primary productivity?

• taiga

• savanna

• tundra

• temperate deciduous forest

Tags

NGSS.HS-LS2-3

NGSS.HS-LS2-4

NGSS.HS-LS2-5