MarBiolExam_IIVersionAFall09-2

MarBiolExam_IIVersionAFall09-2 - Marine Biology NAME_ A...

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Marine Biology NAME_____________________ A Fall 2009- Exam II 1. 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 2. 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 3. 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 4. Which of the following is true of seagrass? a. Provides important nursery habitat b. Plants have flowers c. Are important primary producers in coastal and estuarine waters d. All of the above e. None of the above 5. What is threatening seagrass beds? a. Increased erosion from land clearing b. Increased nutrients from sewage and aquaculture c. Anchor and propeller damage from boats d. All of the above e. None of the above 6. What are the three main types of macroalgae? a. Green, Brown and Red Algae b. Macrocystis, Green and Tunicate Algae c. Green, Kelp and Spartina Algae
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d. Seaweed, Kelp and Red Algae e. None of the above 7. Which of the following is true about algae? a. Brown algae is more advanced than green b. It is thought that land plants evolved from green algae c. Algae can only live in warm, tropical water d. a and b e. all of the above 8. The health of kelp populations off the California coast is declining. Which of the following is helping to restore kelp populations? a. Sea urchins b. El Nino conditions c. Sea otters d. Killer whales e. All of the above 9. What type of algae is nori made from? a. Spartina b. Red c. Green d. Yellow e. Brown 10. What determines the distribution of mangroves? a. Climate, mangroves can only live in warm temperatures b. Climate, mangroves can only live in cold temperatures c. Wind, mangroves can only live in areas with small waves d. Mangroves can only be found on the Pacific Coast e. All of the above Use the diagram below to answer questions 11-14: 11. What is the name of structure 1? a. Leaf b. Blade c. Pneumatocyst
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d. Flower e. Root 12. What is the name of structure 2? a. Bubble b. Flower c. Thallus d. Pneumatocyst e. Blade 13. What is the name of structure 3? a. Stipe b. Stem c. Thallus d. Stamen e. Flower 14. What is the name of structure 4? a. Root b. Branch c. Holdfast d. Thallus e. None of the above 15. Which trophic level contains organisms that are herbivores? a.
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MarBiolExam_IIVersionAFall09-2 - Marine Biology NAME_ A...

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