Phytoplankton Ecology

Which of the following is false about photosynthesis by phytoplankton

• Inorganic carbon is converted to organic carbon

• The O2 produced is 100% of all marine O2 production

• Light is always required

• It represents ~50% of global primary production

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

"Phytoplankton" comprises

• Microscopic plants

• All floating seaweed

• Cyanobacteria and photosynthetic microeukaryotes

• All photosynthetic organisms

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

The genetic diversity of microeukaryotes is larger than all animals combined

• True

• False

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

The tropics have low phytoplankton biomass because of

• the creation of a thermocline

• nutrients cannot access photic zone

• stratification of water column

• All of the above

Tags

NGSS.HS-ESS2-2

NGSS.HS-LS2-3

There is higher phytoplankton biomass in higher latitudes because:

• There is more sunlight

• Seasonality allows mixing of water column

• there is constant coastal upwelling

Tiny phytoplankton thrive in low nutrient waters because

• They escape predation

• They have high surface area to vol ratio for efficient nutrient absorption

• They do not require nutrients for metabolism

• All of the above

Coastal waters have higher primary productivity than open oceans

• True

• False

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Bonus round: Zooplankton are

• All multicellular eukaryotes

• All single-cell microeukaryotes

• None of the above