Multiple Choice - Science questions on the environment.

Need help to make sure I answered questions correctly on multiple choice questions. Please see attached file for full problem description.

Is the environment in trouble from human pollution, or do you believe this is "hype" from the press and scientist? Explain.

Is the environment in trouble from human pollution, or do you believe this is "hype" from the press and scientist? Explain. Please provide references.

Negative Feedback and Weight Loss

How might negative feedback loop explain why people who lose large amounts of weight chain that weight back? Explain the weight cycle in perms of the negative feedback loop. Do you think that weight in humans is regulated by a negative loop? Why or why not?

How do two hearts feel so much love for each other and feel as though they blend into one heart?

How do two hearts feel so much love for each other and feel as though they blend into one heart?

Aristotle suggested that all natural objects could be distinguished in terms of a natural and characteristic activity. Can we apply this approach to an ecosystem?

Aristotle suggested that all natural objects could be distinguished in terms of a natural and characteristic activity. Can we apply this approach to an ecosystem? Do different elements of an ecosystem perform different functions within that system? Could you reason from such ecological facts to normative conclusions about what should be? Why or why not? I need help understanding this. Can you also provide references. Thanks.