Describe the human impact on at least two aquatic ecosystems discussed. How have these alterations impacted these
ecosystems? What will be an ideal response?
Concepts to Consider
Flowing-water ecosystems: water pollution and damming adversely affect these systems.
Standing-water ecosystems: increased nutrients supplied by humans stimulate algal growth,
resulting in enriched ponds and lakes
Wetlands/estuaries: agriculture, pollution and land development all threaten these
ecosystems.
Marine ecosystems: pollution, coastal development, offshore mining and oil drilling, and
overfishing all threaten these systems.
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Answer the following statement true (T) or false (F)
What does it mean to say that experimental conditions are controlled?
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If flagellar rotation of Escherichia coli cells is ________, then CheA is ________.
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