Biol 15N Marine Biology » Winter 2020 » Quiz 5

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Question #1
What are the 3 Domains of life?
A.   Eukarya, Archaea, Bacteria
B.   Protisata, Eukaryotes, Prokaryotes
C.   Eubacteria, Eukarya, Euphylia
D.   Animalia, Protista, Bacteria
Question #2
Dissolved organic material (DOM) is an important part of the marine foodweb, what is one process that is important in generating DOM? 
A.   phagocytosis of microbes
B.   bursting of bacterial cells by bacteriophages
C.   symbiotic nutrient exchanges
D.   photosynthesis by phytoplankton
Question #3
An autotrophic organism that derives metabolic energy from the oxidation or reduction of chemical compounds such as ______ is called a ________ ? 
A.   oxygen, aerobe
B.   nitrogen, nitrogen fixation
C.   hydrogen sulfide, chemoautotroph
D.   carbon dioxide, photoautotroph
Question #4
Cyanobacteria may be endolithic, epiphytic, or planktonic.
A.   FALSE
B.   TRUE
Question #5
Long, retractable pseudopodia are used to catch phytoplankton in the water column for two marine invertebrate groups. Pseudopodia extend from the hard tests; if the test (shell) is made of calcium carbonate, which organism is it?
A.   foraminiferans
B.   radiolarians
C.   diatoms
D.   coccolithophores
Question #6
The armored plates of dinoflagellates are made of what?
A.   cellulose
B.   silica
C.   lignin
D.   calcium carbonate
Question #7
Which organism produces an organic toxin (domoic acid) that can accumulate in shellfish and plankton-feeding fish that can cause a severe nervous system illness in animals (or humans) that consume them?
A.   cyanobacteria
B.   dinoflagellates
C.   all the above
D.   diatoms

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