#Question id: 12756
#Section 5: Applied Ecology & Evolution
Flycatcher birds that migrate from Africa to Europe feed their nestlings mostly with moth caterpillars. The data presented show the mean dates of egg laying, hatching, and fledging of flycatcher young, and the 1980 and 2000 peak mass of caterpillars.
The most likely cause for the shift in caterpillar peak mass is
#Question id: 16864
#General Aptitude
#Question id: 10819
#Section 2: Evolution
According to the competitive exclusion principle, potential competitors can only coexist through
#Question id: 10670
#Section 1: Ecology
To estimate the number of foxes in an area, a researcher conducted a mark-recapture survey. In the first survey, he caught and marked N number of foxes. In his second survey a week later, he caught 120 foxes of which 90 were unmarked (recaptures). If you are told that the actual number of foxes in this area is 400, what is value of N in this area?
#Question id: 10840
#Section 2: Evolution
Why are monarch butterfly’s toxic?