#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: 11652
#Section 1: Ecology
The sequence of changes initiated by disturbance is called succession, and the ultimate association of species achieved is called
#Question id: 16807
#Section 4: Behavioural Ecology
#Question id: 11242
#Section 1: Ecology
A disadvantage of sexual reproduction is
#Question id: 11263
#Section 4: Behavioural Ecology
Studies of parasitism of kentucky warblers by brown-headed cowbirds have shown that fragmentation has ____________the rate of parasitism because of ____________ edge habitat and ____________ habitat quality.