Marine Biology 10th Edition by Castr -Test Bank

Marine Biology 10th Edition by Castr -Test Bank

 

Instant Download – Complete Test Bank With Answers

 

 

Sample Questions Are Posted Below

 

Chapter 05

The Microbial World

 

 

Multiple Choice Questions

1. One of the following statements about marine viruses is not true:
   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

 

2. Bacteriophages are types of:
   A. Archea
   B.  Bacteria
   C.  Protozoa
   D.  Algae
   E.  Viruses

 

3. Prokaryotes differ from eukaryotes in regards to:
   A.Shape of DNA molecules
   B. Size of ribosomes
   C. Presence of nucleus
   D. All of the above
   E. A and B only

 

4. Which of the following is not true of decay bacteria?
   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

 

 

5. Bacteria that make their own organic compounds by obtaining energy from chemical compounds and not directly from light are known as:
   A.Heterotrophic
   B. Decay
   C. Photosynthetic
   D. Protists
   E. Chemosynthetic

 

6. Cyanobacteria are characterized by being:
   A.Decomposers
   B. Found only in the plankton
   C. Having a glass-like skeleton
   D. Protists
   E. Photosynthetic

 

7. Which of the following would be classified as autotrophic?
   A. Cyanobacteria
   B.  Lysogenic viruses
   C.  Bacteriophages
   D.  All of the above
   E.  B and C only

 

8. Endophytes are primary producers that live:
   A.On the surface of planktonic organisms
   B. Inside primary producers
   C. Inside animals
   D. On the surface of animals
   E. Within decay organisms

 

 

9. Archaea are classified as being:
   A. Prokaryotic
   B.  Autotrophs only
   C.  Heterotrophs only
   D.  Consisting of nucleic acids and a protein coat
   E.  Eukaryotic

 

10. Archaea are now being detected in many environments by identifying one of the following chemicals characteristic of the group:
    A.Pigments
    B. Chlorophyll
    C. Nucleic acids
    D. Proteins
    E. Carbohydrates

 

11. Organisms having a shell made of silica (SiO₂):
    A.Foraminiferans
    B. Stromatolites
    C. Cyanobacteria
    D. Diatoms
    E. Ciliates

 

12. Diatoms are mostly:
    A.Heterotrophs
    B. Planktonic
    C. Multicellular
    D. Red in color
    E. Prokaryotic

 

 

13. Which of the following are considered to be extremophiles due to the habitats they exist in?
    A. Marine lichens
    B.  Diatoms
    C.  Archaea
    D.  Radiolarians

 

14. Which of the following can be dangerous to human health?
    A.Diatoms
    B. Dinoflagellates
    C. Radiolarians
    D. All of the above
    E. A and B only

 

15. Some planktoic cyanobacteria have the ability to “fix” which of the following elements thus having a fertilizing effect on the marine environment similar to the ability of the land plants legumes?
    A. Oxygen
    B.  Helium
    C.  Hydrogen
    D.  Nitrogen

 

16. Red tides are caused mostly by:
    A.Diatoms
    B. Foraminiferans
    C. Dinoflagellates
    D. Red seaweeds
    E. Radiolarians

 

 

17. Dinoflagellates that live in association with reef-building corals and other animals are known as:
    A.Zooxanthellae
    B. Zooplankton
    C. Silicoflagellates
    D. Bioluminescent dinoflagellates
    E. Cryptomonads

 

18. Generally the dominant group of planktonic primary producers in cold water:
    A.Foraminiferans
    B. Silicoflagellates
    C. Dinoflagellates
    D. Photosynthetic bacteria
    E. Diatoms

 

19. Marine fungi:
    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

 

20. Which of the following does not apply to protozoans?
    A. Multicellular
    B.  Their name derives from “first animals”
    C.  Some are heterotrophs
    D.  Are included among the Protista
    E.  Some are autotrophs

 

 

21. Radiolarians are characterized by:
    A.Being mostly planktonic
    B. Having a calcareous skeleton
    C. Being autotrophs
    D. Having two flagella
    E. Causing red tides

 

22. Which of the following are not protozoans?
    A. Radiolarians
    B.  Foraminiferans
    C.  Dinoflagellates
    D.  Ciliates
    E.  Unicellular, planktonic organisms whose sediments form huge limestone deposits on land

 

23. Which of the following are not protists?
    A. Dinoflagellates
    B.  Cyanobacteria
    C.  Diatoms
    D.  Foraminiferans
    E.  Ciliates

 

24. What is the purpose of the spines seen on the frustules of diatoms?
    A.Floatation
    B. Hunting
    C. Photosynthesis
    D. Reproduction
    E. Restore normal size

 

25. What is the function of an auxospore?
    A.Floatation
    B. Hunting
    C. Photosynthesis
    D. Reproduction
    E. Restore normal size

 

 

26. An algal bloom is defined as:
    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

 

27. Bioluminescence is observed in:
    A.Diatoms
    B. Dinoflagellates
    C. Radiolarians
    D. Foraminiferans
    E. Lichens

 

28. Zooxanthellae, which live symbiotically with many species, are classified as:
    A.Diatoms
    B. Dinoflagellates
    C. Radiolarians
    D. Foraminiferans
    E. Lichens

 

29. What feature do all protozoa share?
    A. Reproductive strategies
    B.  Habitats
    C.  Feeding strategy
    D.  Structure
    E.  Being unicellular

 

 

30. A survival advantage of __________________ is the ability to withstand exposure to air for long periods of time during tidal cycles.
    A. Diatoms
    B.  Dinoflagellates
    C.  Radiolarians
    D.  Foraminiferans
    E.  Lichens