1.What is the discussion mainly about?
A. A scientific debate over the effectiveness of marine protected areas
B. Why open populations of fish are relatively common
C. A key consideration in protecting marine habitats
D. Ways in which marine protected areas affect fish dispersal
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2.What is the main difference between an open and a closed population of coral-reef fish?
A. The amount of time the population spends on its home reef before dispersing
B. Whether the population feeds at the top or bottom of its reef
C. The distance between where the population originates and where it settles
D. Whether the population hatches closer to the surface or floor of the ocean
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3.What is the primary focus of the oceanographic modeling discussed by the professor?
A. The average number of eggs that are fertilized during spawning
B. The average distance between reefs in a particular region
C. The vulnerability of reef systems to severe weather events
D. The effects of wind and water currents on eggs and larvae
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4.What does the professor imply about DNA testing?
Click on 2 answers.
A. It is considered more reliable than oceanographic modeling and tagging.
B. It helped scientists confirm the number of fish species that reproduce through spawning.
C. It was developed by scientists who specialize in clownfish research.
D. It has changed a long-standing belief about fish populations.
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5.What does the professor imply about clownfish?
Click on 2 answers.
A. They are relatively easy to tag.
B. They mature relatively quickly.
C. Their populations are closed.
D. Their larvae are strong swimmers.
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6.What does the professor mean when she says this:
A. She should have defined oceanographic modeling earlier in the lecture.
B. She believes oceanographic modeling will become more accurate in the future.
C. The student has correctly identified a disadvantage of oceanographic modeling.
D. The student misunderstood a key step in the oceanographic modeling process.