Exam 47: Conservation of Biodiversity

What is the correct sequence of events that has led to the decimation of the kelp beds along the west coast of the U.S.? A.Sea otters decline in numbers B.Increase in orca predation on sea otters C.Decline in the seals and sea otters D.Over fishing of the herring and perch E.Increase in the sea urchin population

Which of the following is not a human induced cause of extinction?

Which of the following preservation tactics would have the greatest impact on saving the largest number of species?

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,

What was the root cause of the decimation of the kelp beds along the west coast of the U.S.?

Which of the following statements about biological diversity is NOT true?

Approximately what % of the known biodiversity on Earth is composed of plants?

_______ when the number of individuals taken from a wild population is so great that the population becomes severely reduced in number.

Forests and other ecosystems may decrease the chances of flooding in an area due to their water-holding capacity.

As the producer biodiversity doubles what will happen to the rate of photosynthesis?

A decrease in the over fishing of herring and perch would have prevented the decimation of the kelp beds along the west coast of the U.S..

Biodiversity is a resource of immense value.All of the following are ways in which biodiversity is directly valuable to humans EXCEPT

Which of the following statements about keystone species is NOT true?

What is the primary goal of conservation biology?

Sustainable development is a pattern of resource use that attempts to preserve the environment while meeting the needs of humans in the present and future.

Which of the following is not a role played by biodiversity within an ecosystem?

Which value of biodiversity in an ecosystem will benefit endangered species the most?

The use of noncultivated fruit,animal skins,fiber,beeswax,and fish are examples of the ______ value of biodiversity.

Which of the following are characteristics of a keystone species?

If all of the endangered species in the United States were to go extinct the Earth's biodiversity would decrease by _________.