3.4 - Measuring Productivity

Biomass is (select all that apply)

• oxidized by respiration to provide energy

• always the same throughout an organism's' life

• never available for consumers to eat.

• Is produced through photosynthesis in plants

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

The Total gain in energy or biomass per unit area per unit time by autotrophs.

• Net Primary Productivity

• Gross Primary Productivity

• Secondary Productivity

• Respiration

Tags

NGSS.HS-LS1-5

Which of the following is the correct equation for gross and net primary productivity

• NPP = GPP - R

• GPP = NPP - R

• GPP = NPP / R

• NPP = GPP/ R

Tags

NGSS.HS-LS2-4

NPP off the coast of California is 250g C/m2/year. Approximately 115g C/m2/year is lost through respiration. What is the GPP?

• 135

• 365

• 2.17

• 300

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-4

NGSS.HS-LS2-5

In the light and dark bottle method of measuring Productivity, the following results were produced. Calculate the respiration based on the data.

• 2mg O2 dm-3h-1

• 11mg O2 dm-3h-1

• 17mg O2 dm-3h-1

• 6mg O2 dm-3h-1

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

Explain the difference in oxygen and carbon dioxide levels between daytime and night time in this graph.

• carbon dioxide will decrease at night without photosynthesis.

• Carbon dioxide will decrease during the day due to photosynthesis.

• Oxygen will increase at night due to more photosynthesis

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

Measuring productivity by monitoring changes in biomass is limited because

• It does not account for the biomass consumed by herbivores.

• biomass is added through photosynthesis in primary producers.

• biomass is not easily measured or estimated.

• biomass is not related to productivity

Which method of measuring productivity allows for large scale monitoring.

• Biomass

• Rate of Photosynthesis

• satellite mapping

• changes in carbon dioxide levels

Tags

NGSS.HS-ESS2-6

Based on the chlorophyll data in this image, what regions tend to have higher productivity.

• Open ocean

• Tropical Latitudes

• Polar regions

• Deep ocean

Tags

NGSS.HS-LS2-5

NGSS.HS-LS2-6

What is a limitation of satellite chlorophyll data

• can't provide data on large areas

• limited to shallow depths

• limited to deeper depths

• limited to nutrient availability