Chp 5 Quiz

CHP 5 QUIZ

Question 1 E.
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One of the following statements about marine viruses is not true:
Select one: a. Are involved in the release of DOM (dissolved organic matter) into the water b. Bridge the gap between the non-living and the living c. Their genetic material is in the form of DNA or RNA d. Cause diseases in many types of organisms e. Consist of minute cells sometimes attached into chains
Question 2 E.
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Bacteriophages are:
Select one: a. Archea b. Bacteria c. Protozoa d. Algae e. Viruses

Question 3 D.
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Prokaryotes differ from eukaryotes in regards to:
Select one: a. Shape of DNA molecules b. Size of ribosomes c. Presence of nucleus d. All of the above e. A and B only
Question 4 B.
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Which of the following is not true of decay bacteria?
Select one: a. Break down waste products and dead organic matter b. Carry out photosynthesis c. Are heterotrophs d. Are particularly abundant in bottom sediments e. Ensure the recycling of essential nutrients
Question 5 E.
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Bacteria that make their own organic compounds by obtaining energy from chemical compounds and not directly from light are known as:
Select one: a. Heterotrophic b. Decay c. Photosynthetic d. Protists e. Chemosynthetic
Question 6 E.
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Cyanobacteria are characterized by being:
Select one: a. Decomposers b. Found only in the plankton c. Having a glass-like skeleton d. Protists e. Photosynthetic
Question 7 A.
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Which of the following are classified as autotrophs?
Select one: a. Cyanobacteria b. Lysogenic viruses c. Bacteriophages d. All of the above e. B and C only
Question 8 B.
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Endophytes are primary producers that live:
Select one: a. On the surface of planktonic organisms b. Inside primary producers c. Inside animals d. On the surface of animals e. Within decay organisms
Question 9 A.
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Archaea are characterized by being:
Select one: a. Prokaryotic b. Autotrophs only c. Heterotrophs only d. Found only in extreme environments e. Eukaryotic
Question 10 C.
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Archaea are now being detected in many environments by identifying one of the following chemicals characteristic of the group:
Select one: a. Pigments b. Chlorophyll c. Nucleic acids d. Proteins e. Carbohydrates
Question 11 D.
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Organisms having a shell made of silica (SiO2):
Select one: a. Foraminiferans b. Stromatolites c. Cyanobacteria d. Diatoms e. Ciliates
Question 12 B.
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Diatoms are mostly:
Select one: a. Heterotrophs b. Planktonic c. Multicellular d. Red in color e. Prokaryotic
Question 13 E.
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Which of the following can be dangerous to human health?
Select one: a. Diatoms b. Dinoflagellates c. Radiolarians,t d. All of the above e. e. A and B only

Question 14 C.
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Red tides are caused mostly by:
Select one: a. Diatoms b. Foraminiferans c. Dinoflagellates d. Red seaweeds e. Radiolarians
Question 15 A.
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Dinoflagellates that live in association with reef-building corals and other animals are known as:
Select one: a. Zooxanthellae b. Zooplankton c. Silicoflagellates d. Bioluminescent dinoflagellates e. Cryptomonads

Question 16 D.
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Generally the dominant group of planktonic primary producers in cold water:
Select one: a. Foraminiferans b. Silicoflagellates c. Dinoflagellates d. Photosynthetic bacteria e. Diatoms
Question 17 B.
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Marine fungi:
Select one: a. Are mostly photosynthetic b. Are parts of lichens that live on rocky shores c. Secrete calcareous skeletons d. Produce red tides e. None of the choices are correct: there are no marine fungi
Question 18 A.
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Which of the following does not apply to protozoans?
Select one: a. Multicellular b. Their name derives from "first animals" c. Some are heterotrophs d. Are included among the Protista e. Some are autotrophs
Question 19A.
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Radiolarians are characterized by:
Select one: a. Being mostly planktonic b. Having a calcareous skeleton c. Being autotrophs d. Having two flagella e. Causing red tides
Question 20 C.
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Which of the following are not protozoans?
Select one: a. Radiolarians b. Foraminiferans c. Dinoflagellates d. Ciliates e. Unicellular, planktonic organisms whose sediments form huge limestone deposits on land
Question 21 B.
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Which of the following are not protists?
Select one: a. Dinoflagellates b. Cyanobacteria c. Diatoms d. Foraminiferans e. Ciliates
Question 22 A.
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What is the purpose of the spines seen on the frustules of diatoms?
Select one: a. Floatation b. Hunting c. Photosynthesis d. Reproduction e. Restore normal size
Question 23 E.
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What is the function of an auxospore?
Select one: a. Floatation b. Hunting c. Photosynthesis d. Reproduction e. Restore normal size

Question 24 A.
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An algal bloom is defined as:
Select one: a. a. Mass reproduction of algal cells

b. Mass death of algal cells c. Mass feeding on algal cells by zooplankton d. Mass vertical migrations of algal cells e. Mass horizontal migrations of algal cells
Question 25 B.
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Bioluminescence is observed in:
Select one: a. Diatoms b. Dinoflagellates c. Radiolarians d. Foraminiferans e. Lichens
Question 26 B.
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Zooxanthellae, which live symbiotically with many species, are classified as:
Select one: a. Diatoms b. Dinoflagellates c. Radiolarians d. Foraminiferans e. Lichens
Question 27 E.
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What feature do all protozoa share?
Select one: a. Reproductive strategies b. Habitats c. Feeding strategy d. Structure e. Unicellularity
Question 28 E.
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A survival advantage of __________________ is the ability to withstand exposure to air for long periods of time.
Select one: a. Diatoms b. Dinoflagellates c. Radiolarians d. Foraminiferans e. Lichens