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Questions and Answers
What is unique about cyanobacteria?
What is true about all types of algae?
Why are cyanobacteria classified as algae?
What is the main difference between cyanobacteria and other algae?
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Which of the following is NOT true about cyanobacteria?
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Where can algae grow unexpectedly?
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What type of organisms can algae form symbiotic relationships with?
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What is an example of a symbiotic relationship formed by algae?
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Which of the following is NOT a place where algae can grow?
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What type of relationship can algae form with mollusks?
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What is the primary result of algal blooms?
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What is a consequence of the disruption of natural aquatic ecosystems by algal blooms?
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What type of organisms are responsible for algal blooms?
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What is an economic consequence of algal blooms?
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What is the overall effect of algal blooms on aquatic ecosystems?
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What is one of the conditions that they can endure?
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Which of the following is NOT a condition that they can endure?
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What is another condition that they can endure?
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Which of the following is a condition that they can endure?
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What is one of the conditions that they can endure?
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What are the main sources of nitrogen that contribute to environmental issues?
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What is the primary component of fertilizers and animal manures that affects the environment?
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What is the main human activity responsible for the increase in nitrogen levels in the environment?
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What is the result of excessive nitrogen in the environment?
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What is the primary source of nitrogen in animal manures?
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Study Notes
Characteristics of Algae
- Algae are eukaryotes, except for cyanobacteria, which are prokaryotes
- Can endure a range of temperatures, oxygen or carbon dioxide concentrations, acidity, and turbidity
Unusual Growth Locations
- Found growing on tree trunks, animal fur, snow banks, and hot springs
Symbiotic Relationships
- Can form symbiotic relationships with non-photosynthetic organisms, including:
- Ciliates
- Sponges
- Mollusks
- Fungi (as lichens)
Algal Blooms
- Result from the rapid growth of certain microalgae
- Lead to the production of toxins and disruption of natural aquatic ecosystems
- Increase the costs of water treatments
- Caused by human activities, including:
- Use of fertilizers in agriculture
- Animal manures rich in nitrogen
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Description
Learn about the classification of algae, including the exception of cyanobacteria, also known as blue-green algae, which are prokaryotes.
