APES Biodiversity Test

Which of the following identifies the two factors thought to be the most harmful to biodiversity.

Destruction of habitat and invasion by nonnative species

Which of the following statements about genetic diversity is true?

Genetic resistance to pests and diseases can be increased by crossing a crop plant with ancestral varieties.

Characteristics that tend to increase the risk of a species becoming endangered include which of the following?

I,II, and III (Having limited distribution, Being a specialist at the end of a long food chain, Having a small population size)

The factor that likely poses the greatest threat of extinction of species world wide is...

Increasing loss of habitat

Which of the following leads to a decrease in biodiversity?

Introduction of exotic species

A state highway was constructed over wetlands. The state obtained a permit to fill the existing wetlands in accordance with the provisions of the Clean Water Act of 1972, and agreed to create another wetland. This trade-off approach to addressing an environmental issue is known as.

Mitigation

The largest area of old growht forest in the U.S is located in...

North Carolina

Which of the following is the best example of environmental remediation?

PCB-consuming bacteria are sprayed on an area that has soil contaminated with PCB's

In general, which of the following is the best long-term method of preventing extinctions

Protecting the habitats of endangered species

Fragmenting one large park or preserve into many small parks with human habitation in between them is most likely to lead to which of the following?

Reduction in species diversity

Which of the following would most likely have the greatest positive impact on the quality of the natural environment worldwide?

Stabilization or reduction of the size of the human population

Population biologists are concerned about introduced species such as the zebra mussel in North America because...

The introduced species compete for resources more effectively than native species.

Why do introduced species often become pests?

They displace native species

Which of the following is generally true of K-strategist species as compared to r-strategist species?

They have longer life spans.

Many of the hot spots for biodiversity are located in _________ nations

developing

Illegal hunting for profit is called

poaching

Environmentalists oppose the mining of Antarctic mineral resources because

the Antarctic environment is fragile & extremely vulnerable to the disturbance that would accompany development.

CITIES is...

A treaty controlling the international trade in endangered species

People regard wildflowers as beautiful, and this is evidence that wildflowers have _____ importance.

Aesthetic

Some toxic compounds are ingested and retained in the tissues. These pollutants pose special risks to humans and other organisms high on the food chain because of which process?

Biomagnification

Which of the following is a commercially used method for harvesting trees and is most likely to lead to a fragmented landscape with serious impacts on biodiversity?

Clear-cutting

Of the following, the greatest threat to populations of migratory North American songbirds is

Clearing of tropical forests