5 Written questions
5 Matching questions
- Preliminary studies indicate that biodiversity maximizes resource acquisition and retention within an ecosystem.
- When the factors causing habitat decline are identified and a procedure is developed to remedy this, it is
A. the edge effect.
B. a habitat restoration plan.
C. a population viability analysis.
D. a gap analysis.
E. landscape dynamics.
- The use of noncultivated fruit, animal skins, fiber, beeswax, and fish are examples of the ______ value of biodiversity.
A. agricultural use
B. medicinal use
C. consumptive use
D. contributions to the biogeochemical cycles
- Which of the following organisms is NOT an example of an alien or exotic species?
A. zebra mussels introduced to the Great Lakes
B. dandelions planted by pioneers as salad greens
C. the mongoose brought to Hawaii to control rats
D. water hyacinths
E. All of these are examples of introduced alien species.
- Scientists estimate that at least 50-60% of all species now living will most likely become extinct in the next 20-50 years unless planned, coordinated action takes place.
- a True
- b C. consumptive use
- c False
- d E. All of these are examples of introduced alien species.
- e B. a habitat restoration plan.
5 Multiple choice questions
- C. it contains an unusually high concentration of species.
- C. acid rain or snow.
5 True/False questions
The use of wheat, corn, rice and other crops derived from wild ancestors is an example of the _______ value of biodiversity.
C. consumptive use
D. climatic regulation → C. consumptive use
Which of the following associations is (are) incorrect?
A. biodiversity - variety of life on Earth
B. landscape diversity - involves a group of interacting ecosystems
C. genetic diversity - variations in the species composition of communities at different locales
D. ecosystem diversity - variations among the members of a population
E. C and D are incorrect. → E. C and D are incorrect.
Which of the following statements about pollution is NOT true?
A. When the ozone shield is destroyed, excess ultraviolet light reaches the Earth.
B. Water vapor and sulfur dioxide or nitrogen oxides combine to form wet or dry acid deposits.
C. A lake can die due to eutrophication, which is a lack of nutrients.
D. Synthetic chemicals can mimic hormones and cause abnormal growth and behavior in wild animals.
E. CFCs, like Freon, have chlorine atoms that breakdown the ozone shield. → B. Keystone species are defined as a population subdivided into several small isolated populations due to habitat fragmentation.
Conservation biology supports all of the following ethical principles EXCEPT
A. biodiversity is desirable for the biosphere and humans.
B. all animals have the same rights or legal status as humans.
C. biodiversity has value in and of itself regardless of any practical human benefits.
D. extinctions due to human actions are undesirable.
E. the complex interactions of ecosystems support biodiversity and are desirable. → D. Biodiversity is evenly distributed throughout the biosphere.
As "civilization" spread around the world, several species benefitted greatly from new human-made habitats, including the house fly, the Norwegian rat, and many crop plants. Generally, with expansion of human populations and agriculture,
A. there has been an increase in biological diversity.
B. biological diversity has remained the same, with human-associated organisms replacing the few natural species displaced.
C. biological diversity has decreased but mainly with the elimination of pests by humans.
D. biological diversity is decreasing at an accelerating rate with the elimination of many unstudied species. → B. all animals have the same rights or legal status as humans.