Exam 12: The Plankton, Productivity, and Food Webs

Populations of zooplankton can ________.

Which of the following is not necessary for photosynthesis?

Viral abundance is strongly correlated with plankton biomass.

Autotrophic organisms are ________.

All phytoplankton are capable of photosynthesis.

Some ctenophores are herbivores while others are carnivores.

Areas of divergence where upwelled water reaches the surface typically have very low productivity.

When primary productivity is high, the standing crop remains high and nearly constant.

In temperate regions, both winter mixing and summer's increasing solar radiation control primary production.

Dinoflagellate cell walls are composed of ________.

If baleen whales eat krill that eat diatoms, krill represents the ________ trophic level.

Phytoplankton blooms can occur when the following are present in abundance except ________.

The highest rates of productivity in temperate waters occur in ________.

Bacterioplankton includes which of the following?

The total primary production of the world's oceans is determined more by the large seaweeds than it is by the single-celled microscopic phytoplankton.

Satellites can detect ocean color by taking advantage of the fact that chlorophyll absorbs ________.

Phytoplankton biomass can be measured by satellite.

Bacteria living in the ocean are ________.

Plankton that range between 200 microns and 2 millimeters in size are considered ________.

Assuming 10-percent trophic efficiency, the other 90 percent of the energy associated with a given trophic level is ________.