Freshwater quiz

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Freshwater quiz

  1. 1. GEN. ECOLOGY Name _________________ SCORE ___________ Course/Year ____________ DATE ____________ FRESHWATER HABITAT Quiz no._____ IDENTIFICATION: (1 point each) _____________1. Types of freshwater habitats that is washed or the running water refers to flowing water. _____________2. It is defined as having a low salt concentration and is usually less than 1%. _____________3. How many percent of freshwater habitats on the earth surface? _____________4. Calm freshwater habitat or standing water refers to standing or relatively still water. _____________5. It is the study of freshwater Habitats. Multiple choice: Write the letter of the correct answer before the number. ________1.). Lakes with an intermediate level of productivity, these lakes are commonly clear water lakes and ponds with beds of submerged aquatic plants and medium level of nutrients. A. Hypereutrophic lake B. Mesotrophic lake C. Eutrophic lake D. Oligotrophic lake ________2.) Bodies of water which are characterized with low algal nutrients (such as nitrate or phosphate) and low in the amount of algal material per unit of volume. A. Hypereutrophic lake B. Mesotrophic lake C. Eutrophic lake D. Oligotrophic lake ________3.). Type of lake which is rich in nutrients rich lakes and severe nuisance algal blooms and low transparency. Have visibility depth of less than 3 feet. A. Hypereutrophic lake B. Mesotrophic lake C. Eutrophic lake D. Oligotrophic lake
  2. 2. _______4.)Bodies of water are high in algal nutrients and often populated densely with algal. They are more likely to be low in dissolved oxygen especially in summer. A. Hypereutrophic lake B. Mesotrophic lake C. Eutrophic lake D. Oligotrophic lake Essay: 1. Differentiate the following terminologies: (2 pts each) Epilimnion - Hypolimnion - Thermocline - 2. Briefly discuss the annual lake cycle. (5 pts.)

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