ESM 424 TMA_2 solutions 2019_2


ESM 424
1. One of these statements is NOT true of freshwater microorganisms
Ans: They are uniform in size

2. One of these is not a temperature related factor affecting the functioning of the fresh water ecosystem
Ans: Surface tension

3. These are aquatic animals that are significant sources of energy and nutrients to carnivorous invertebrates ._____________
Ans: Zooplankton

4. These are cold-blooded vertebrates that generally live out their juvenile stages in aquatic environments and then move onto land as adults ___________
Ans: amphibians

5.  Which of these is not a type of plant found in freshwater
Ans: detritus

6. Examples of invertebrates found in freshwater incude all except
Ans: protozoa

7. One of these is a major factor that affects the concentration oxygen inlentic fresh water
Ans: cloud cover

8. All animals that have a backbone are called ___________
Ans:vertebrates

9. Which of these statements is true of protozoa
Ans: consume other organisms

10. The distribution of fish can be influenced by all of these except
Ans: Water

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