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Quiz 10 OCE 4008 Final Exam Study Guide

____ 1. Which plankton are considered microplankton?
A. Silicoflagellates
B. Dinoflagellates
C. Coccolithophores
D. Cyanobacteria
____ 2. What is the smallest form of plankton?
A. Microplankton
B. Nanoplankton
C. Femtoplankton
D. Picoplankton
 
 
____ 3. What makes light absorption in diatoms more effective than just using chlorophyll?
A. Surface-to-volume
B. Microbial loop
C. Frustule perforations
D. Accessory pigments
____ 4. What kind of plankton remains planktonic for its entire life?
A. Holoplankton
B. Meroplankton
C. Mesoplankton
D. Zooplankton
____ 5. What can hinder photosynthetic productivity in the open ocean?
A. Light
B. Carbon dioxide
C. Iron
D. Conservative nutrients
____ 6. Why are marine viruses important?
A. Strong influence on bacterial and algal populations
B. Microbial food web & nutrient cycling
C. Pathogenic
D. All of the above
____ 7. Virus types include all of the following except:
A. DNA
B. RNA
C. Multicellular
D. Double-stranded
____ 8. On average there are __ times more viruses as prokaryotic cells in the biosphere.
A. 2
B. 4
C. 10
D. 20
____ 9. What is the most productive photosynthetic plankton apart from Cyanobacteria?
A. Dinoflagellates
B. Coccolithophores
C. Diatoms
D. Ciliates
____ 10. What is a frustule?
A. The by-product of photosynthesis in diatoms
B. The rigid cell wall of a diatom
C. A microscopic phage that attacks diatoms
D. A small appendage on a cyanobacteria
____ 11. What is usually responsible for a harmful algal bloom?
A. Diatoms
B. Viruses
C. Cyanobactiera
D. Dinoflagellates
____ 12. What do researchers use to directly measure the rate of productivity?
A. Carbon-12
B. Biomass
C. Carbon-14
D. Chloroplasts
____ 13. What new method is being used to calculate productivity by estimating the chlorophyll?
A. Biomass
B. Orbiting satellites
C. Radioactive tagging
D. Light-dark reactions
____ 14. Where is phytoplankton the most productive?
A. Tropical latitudes
B. Temperate latitudes
C. North polar latitudes
D. Equator
____ 15. What season does phytoplankton peak in the northern temperate zone?
A. Spring
B. Summer
C. Autumn
D. Winter
____ 16. In the ocean, viral abundance __________ further offshore and __________ steadily below the thermocline.
A. Decreases; decreases
B. Decreases: increases
C. Increases; decreases
D. Increases; increases
____ 17. The hypothesis that more abundant bacteria are more likely to become infected by viruses is referred it as:
A. Red Queen hypothesis
B. Kill the Winner hypothesis
C. King of the Mountain hypothesis
D. Old friends hypothesis
____ 18. A highly biological productive ocean surface appears chalky; what plankton is likely successful here?
A. Diatoms
B. Dinoflagellates
C. Coccolithophores
D. Isopods
Measuring biomass is not efficient in calculating primary productivity because dense areas can have lower productivity
T
F
____ 20. After a plankton bloom, nonconservative nutrients are produced in high levels.
T
F
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