#Question id: 4651
#Section 2: Evolution
Some members of a photosynthetic plant species are genetically resistant to an herbicide, while other members of the same species are not resistant to the herbicide. Which combination of events should cause the most effective replacement of the non-herbicide-resistant strain of plants by the resistant strain?
1. The presence of the herbicide in the environment
2. The absence of the herbicide from the environment
3. The maintenance of the proper conditions for one generation
4. The maintenance of the proper conditions for many generations
#Question id: 12809
#General Aptitude
#Question id: 8916
#Section 2: Evolution
#Question id: 10657
#Section 2: Evolution
Assuming these age-structure diagrams describe human populations, in which population is unemployment likely to be a societal issue in the future?
#Question id: 10609
#Section 1: Ecology
The observation that members of a population are uniformly distributed suggests that