Chapter 44

\(A(n)\) ______ species has population levels so low it is at great risk of extinction in the near future. a. endemic b. endangered c. threatened d. indicator

Species are threatened by habitat ______ a. fragmentation b. degradation c. destruction d. all of the above

Deforestation ______ the amount of minerals that run off from soil. a. increases b. decreases c. has no effect on

Sulfur dioxide released by coal-burning power plants contributes to ______ a. ozone destruction b. sea level rise c. acid rain d. desertification

As a result of ______ an old animal usually has more pollutants in its body than a young one. a. bioaccumulation b. biological magnification

With biological magnification, a ______ will have the highest pollutant load. a. producer b. primary consumer c. secondary consumer d. top-level consumer

An increase in the size of the ozone hole would be expected to ______ a. increase skin cancers b. reduce respiratory disorders c. both a and b

True or false? All pollutants are synthetic chemicals.

Global climate change is causing ______ a. a decrease in sea level b. glacial melting c. acid rain d. all of the above

The Montreal Protocol banned use of ______ which contribute(s) to ozone depletion. a. DDT b. CFCs c. fossil fuels d. sulfur dioxides

A highly threatened region that is home to many unique species is a(n) ______ a. ecoregion b. biome c. hot spot d. community

Biodiversity refers to ______ a. genetic diversity b. species diversity c. ecosystem diversity d. all of the above

Restoring a marsh that has been damaged by human activities is an example of ______ a. biological magnification b. bioaccumulation c. ecological restoration d. globalization

Individuals help sustain biodiversity by ______ a. reducing resource consumption b. reusing materials c. recycling materials d. all of the above

Match the terms with the most suitable description. $$ \text {hot spot } \quad \quad\quad\quad\quad \text {a. good up high; bad nearby} $$ $$ \text {ozone} \quad \quad\quad\quad\quad \text {b. tree loss alters rainfall pattern and is difficult to reverse} $$ $$ \text {biodiversity} \quad \quad\quad\quad\quad \text {c. can increase dust storms} $$ $$ \text {acid rain} \quad \quad\quad\quad\quad \text {d. evolved in one region and remains there} $$ $$ \text {endemic species} \quad \quad\quad\quad\quad \text {e. coal-burning is major cause} $$ $$ \text {biological magnification} \quad \quad\quad\quad\quad \text {f. results in highest pollution level at top trophic level} $$ $$ \text {global climate change} \quad \quad\quad\quad\quad \text {g. has lots of threatened species } $$ $$ \text {deforestation} \quad \quad\quad\quad\quad \text {h. cause of rising sea level} $$ $$ \text {desertification} \quad \quad\quad\quad\quad \text {i. genetic, species, and ecosystem diversity} $$