Define the term commensalism

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Questions

1. A late frost killed many of the tomato plants in neighbourhood gardens, greatly decreasing the population. Identify this population growth regulating factors as density-dependent or density-independent. Justify your choice.

2. Define the term "commensalism" and explain why some biologists argue that it does not exist.

3. Fearing mosquito-borne encephalitis, a local neighborhood group wants to drain the swamp near the park. Explain two reasons to them why this is not a good idea and suggest an alternative that will control the mosquito population with minimal effect on the local ecology.

4. Give one reason why a hunter-gatherer society is limited in size.

5. Ecologist often use the expression "Think Globally, Act Locally." Show how a by-law forcing water-saving toilets follows this philosophy.

Reference no: EM133934050

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