Q. Which of the following places shows presence of Geothermal vents?

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Q. Large spiraling surface currents in the ocean that tend to aggregate and retain nutrients are known as _______________

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Q. Most aquatic microorganisms can grow on the usual laboratory media.

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Q. Which of the following techniques is used for identification and enumeration of algae, bacteria, protozoa?

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Q. Which of the following techniques can be used to separate different-size fractions of the aquatic microbial community?

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Q. Which of the following zones have considerable rooted vegetation?

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Q. Which of the following layer is composed of soft mud or ooze?

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Q. In which of the following seasons does the nutrient concentration falls at a drastically lower level?

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Q. Rapidly expanding urbanization makes it difficult to generalize upon typical microbial flora of streams.

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Q. The coastal adjunct of the marine ecosystem is __________________

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Q. The Chesapeake Bay, one of the world’s major estuarine system serves as the receiving basin for how many rivers?

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Q. In regions of the estuary that are nutritionally poor, it is more likely to find which of the following organisms?

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Q. The characteristic color of the Red Sea is associated with heavy blooms of __________________

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Q. Aquatic bacteria tend to be Gram-negative.

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Q. Which of the following genus of bacteria is not found in fresh waters?

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Q. The primary producers in the marine system are ________________

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Q. The primary producers transform radiant energy into heat energy.

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Q. The biological activity of an aquatic ecosystem is dependent upon which of the following factors?

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Q. Which of the following water bodies, the role of photosynthetic organisms is considerably reduced?

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Q. Which of the following aquatic organisms contribute in a small amount to the shallow estuary food web?

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