Explain how human activities can cause an imbalance in biogeochemical cycling and lead to problems such as cultural eutrophication and fish kills.

Answer 1

There are many reasons how human activities can lead to an imbalance of biochemical cycling, anything that the natural environment is not familiar with can damage or throw off biochemical balance
One of the negative impacts of eutrophication and increased algal growth is a loss of available oxygen, known as anoxia. These anoxic conditions can kill fish and other aquatic organisms such as amphibians. However, how does eutrophication actually lower oxygen levels when it is common knowledge algae produce oxygen?
It is true algae produce oxygen, but only when there is enough light. Eutrophication reduces the clarity of water and underwater light. In eutrophic lakes, algae are starved for light. When algae don’t have enough light they stop producing oxygen and in turn begin consuming oxygen

Answer 2

Compare and contrast the traits and growth patterns of opportunistic versus equilibrium populations.

Answer 3

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Answer 4

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