MARINEBIOLOGYEXIIVERSIONB

MARINEBIOLOGYEXIIVERSIONB - Marine Biology NAME_ B Fall...

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Marine Biology NAME_____________________ B Fall 2009- Exam II Please put your last and first name on both this exam and on your scantron. In the upper right hand corner of your scantron put a large B to indicate you took version B of the exam. Test No. is Exam II 1. What is carrying capacity? a. The smallest population size that can be sustained by available resources in an ecosystem b. The largest population size that can be sustained by available resources in an ecosystem c. The mean size of any given population d. The light saturation point for photosynthetic organisms e. None of the above 2. A web of indirect interactions where affect on one species may flow through an ecosystem and affect other species is called ______________. a. Intraspecific competition b. Resource partitioning c. A trophic cascade d. An Epiphytic relationship e. None of the above 3. The epipelagic zone is? a. The zone from 4000 m down to the ocean floor. It is the coldest and darkest pelagic zone. b. The zone from the surface down to 200 m (650 ft). It is the warmest and best lit region of the ocean c. The zone where most deposit feeders can be found. d. Both a and c. e. None of the above 4. A life history trait with two generations, a sporophyte and a gametophyte, is an example of what? a. Generational deterioration. This is usually displayed in marine mammals. b. Alternation of generations. This is usually displayed in marine plants and seaweeds. c. Next Generation Production. This is only displayed in marine plants. d. Alternating life histories. This is usually displayed in marine plants and seaweeds. e. None of the above. f. 1
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5. The main difference between filter feeders and deposit feeders is that…. a. Deposit feeders eat food particles suspended in the water column while filter feeders eat food particles that have settled on the bottom of the ocean floor. b. Deposit feeders eat food particles that have settled on the bottom of the ocean floor while filter feeders eat food particles suspended in the water column. c. Filter feeders are less intelligent than deposit feeders. d. Both b and c. e. None of the above. 6. What are primary producers? a. Photosynthetic organisms which produce energy from sunlight, water and carbon dioxide b. Organisms that eat preformed organic matter c. Organisms at the top of the food web d. a and c e. All of the above 7. What is an example of detritus? a. Krill b. Mangroves growing out of the water c. Mangrove leaves that have fallen into the water d. Live seagrass plants e. All of the above 8. Which of the following is a characteristic of mangrove trees? a. Roots above the water level to pump in air b. Constantly drop leaves into water, which are broken down by microbes creating an anoxic environment around the tree base c. Seeds germinate while on the plant d. All of the above e. None of the above 9. Which of the following is true of seagrass? a.
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This note was uploaded on 11/07/2011 for the course BIO 160 taught by Professor Dr.jonstern during the Fall '08 term at S.F. State.

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MARINEBIOLOGYEXIIVERSIONB - Marine Biology NAME_ B Fall...

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