Exam 9: Sustaining Biodiversity: The Species Approach

The biggest problem with invasive species is that in the new location, they ____.

Biodiversity hotspots are ____.

Consider the Case Study: Polar Bears and Climate Change. What do you think will be the result of removing the top predator from an ecosystem as vast as the Arctic? Be as specific as possible.

Some people believe it is unethical to collect wild animals and plants for display and personal pleasure and that such plants and animals should be left in the wild. Explain why you agree or disagree with this view.

Explain what you think E. O. Wilson meant when he said, "The first animal species to go are the big, the slow, the tasty, and those with valuable parts such as tusks and skins."

A 2006 study estimated the total polar bear population is likely to decline by how much by 2025?

Some toxic chemicals, such as those in DDT, can be stored in the fat tissue of animals. As these animals become food for larger and larger animals, the amount of the toxin gets larger and larger. What is this process called?

Colony collapse disorder is ____.

All mass extinctions thus far have been caused by natural phenomena that drastically changed environmental conditions.

The ____________________ suggests we should take measures to prevent or reduce harm to the environment and human health even if some of the cause-and-effect relationships have not been fully established scientifically.