1/ Conservation biologists breed some endangered species like the panda bear in captivity. Which is the most likely reason that panda populations in the wild are still threatened? Select one: a. Not enough animals can be bred to release into the wild. b. Their environment is polluted. c. Loss of habitat has occurred. d. The wild pandas cannot breed. e. Their population density is too high. 2/ Why is it important to maintain biodiversity? Select one: a. to preserve ecosystems b. to protect species richness c. to provide resources to humans d. to maintain genetic variation e. All answers are correct. 3/ One key to reversing environmental decline will be to slow the growth of the human population. TRUE OR FALSE 4/ In addition to eutrophication in lakes, which process is caused by excess nutrients in rivers? A. warming of the water in the Gulf of Mexico B. introduction of exotic species like Zebra mussels C. the dead zone in the Gulf of Mexico D. decreased plant growth E. clogging of city water lines 5/ Which of the following would be a positive environmental impact of damming a river? a. Fish can no longer migrate up and down the river. b. Animal migration may be disrupted. c. Streamside habitats may be disrupted. d. It would provide irrigation water. e. All of the answer choices are positive impacts for damming rivers. 6/ Carbon dioxide gas is not a major contributor to the greenhouse effect. TRUE OR FALSE
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Consider the options: a. Not enough animals can be bred to release into the wild. b. Their environment is polluted. c. Loss of habitat has occurred. d. The wild pandas cannot breed. e. Their population density is too high. The most likely reason is c. Show more…
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