It is extremely important that you as a human being, and as a member of one of the richest nations on the planet, participate in providing creative solutions to the severe environmental and ecological challenges facing our species over the coming century.

The concept of trophic structure emphasizes the _______

Habitat loss is the least important of the environmental problems this century.

Probably the most important factor/s affecting the distribution of biomes is/are ______

A community ecologist would most likely be concerned with ______

A keystone predator is an organism that by predation increases competition in a community thereby allowing a higher species richness and species diversity.

A species is more likely to become part of the fossil record if it has which of the following characteristics?

All of the following statements about energy flow are false except ______

Which of the following will be the consequences of the escalating climate crisis?

Which of these is an example or are examples of (a) vestigial structure/s?