#Question id: 9213
#Section 2: Evolution
Suppose you attend a town meeting at which some experts tell the audience that they have performed a cost-benefit analysis of a proposed transit system that would probably reduce overall air pollution and fossil fuel consumption. The analysis, however, reveals that ticket prices will not cover the cost of operating the system when fuel, wages, and equipment are taken into account. As a biologist, you know that if ecosystem services had been included in the analysis, the experts might have arrived at a different answer. Why are ecosystem services rarely included in economic analyses?
#Question id: 12324
#Section 1: Ecology
#Question id: 10631
#Section 1: Ecology
To estimate the number of foxes m an area, a researcher conducted a mark-recapture survey. In the fast survey, he caught and marked 90 foxes. In his second survey a week later, he caught 120 foxes of which 40 were marked (recaptures). If you are told that the actual number of foxes in this area is 400, which of the following is a plausible explanation for the anomaly in the researcher's data?
#Question id: 16792
#Section 5: Applied Ecology & Evolution
#Question id: 4616
#Section 2: Evolution
Logically, which of these should cast the most doubt on the relationships depicted by an evolutionary tree?