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1 | |
Which is most true about cyanobacteria? They: |
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| | A) | are among the most palatable and desirable food for zooplankton. |
| | B) | are eukaryotes specialized for photosynthesis. |
| | C) | are restricted to the most pure waters in lakes and streams. |
| | D) | as single cells, they have favorable surface-to-volume ratios, compared to larger protists. |
| | E) | can fix dissolved silicon as silicate polymers. |
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2 | |
Aphanizomenon and Microcystis are: |
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| | A) | species of parasitic fungi. |
| | B) | found often in the open water of lakes, as bloom-forming prokaryotic algae characteristic of eutrophic waters; they are sometimes toxic. |
| | C) | parasitic protists found inside other organisms. |
| | D) | inhabitants of the open ocean as large armored algae characteristic of eutrophic summer conditions, which can be toxic and are responsible for "red tides". |
| | E) | found in the open lake water, where they are the main non-toxic food for zooplankton. |
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3 | |
Protists are characterized by: |
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| | A) | a lack of organelles such as mitochondria and chloroplasts. |
| | B) | high diversity at the phylum level of classification. |
| | C) | inability to photosynthesize or reproduce sexually. |
| | D) | planktonic, never sessile, behavior. |
| | E) | the tissue level of organization. |
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4 | |
Which organism is most star-shaped? |
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| | A) | Aphanizomenon |
| | B) | Asterionella |
| | C) | Cyanobacteria |
| | D) | Daphnia |
| | E) | Paramecium |
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5 | |
Giardia and Plasmodium are most often found in which habitat? |
|
| | A) | The aufwuchs |
| | B) | In the open water of lakes, as bloom-forming prokaryotic algae characteristic of eutrophic waters, sometimes toxic. |
| | C) | Inside other organisms. |
| | D) | In the open ocean as large armored algae characteristic of eutrophic summer conditions, which can be toxic and are responsible for "red tides." |
| | E) | The open lake water, where they are the main non-toxic food for zooplankton. |
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6 | |
Vorticella, Sessile diatoms, some fungi and some attached green algae are all members of: |
|
| | A) | a stream community that is found deep inside gravel beds. |
| | B) | Archaebacteria. |
| | C) | the aufwuchs (also called "periphyton"). |
| | D) | the group Protista. |
| | E) | the open water community. |
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7 | |
Chlorella and Rhodomonas are two kinds of protists that are: |
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| | A) | among the most palatable and desirable food for zooplankton. |
| | B) | prokaryotes specialized for photosynthesis. |
| | C) | are restricted to the most productive waters streams. |
| | D) | species of parasitic prokaryotes. |
| | E) | able to "fix" dissolved silicon as silicate polymers. |
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8 | |
Dinoflagellates such as Ceratium are: |
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| | A) | important members of the aufwuchs. |
| | B) | found in the open water of eutrophic lakes, as bloom-forming prokaryotic algae, which are an important part of the diet of zooplankton. |
| | C) | parasites living inside other organisms. |
| | D) | inhabitants of open water in lakes and the ocean -- large armored algae characteristic of eutrophic summer conditions, which can be toxic and are responsible for "red tides". |
| | E) | a group of fungi specialized for eating (metabolizing) waterlogged wood. |
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9 | |
These protists (a kind of algae) have each cell protected by a glass shell (frustule): |
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| | A) | Blue-green Algae |
| | B) | Cryptophytes |
| | C) | Diatoms |
| | D) | Flagellates |
| | E) | Green Algae |
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10 | |
Fungi are characterized by the ability to: |
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| | A) | have either eukaryotic or prokaryotic cells in their tissues made of long thread-like cells. |
| | B) | live on moist soil but not in freshwater, because they need to breath oxygen. |
| | C) | produce toxic blooms in productive (eutrophic) lakes. |
| | D) | absorb and utilize organic chemicals for food, whether the organics are dissolved in water or are inside plants and animals. |
| | E) | reproduce asexually and photosynthesize. |
2005 McGraw-Hill Higher Education