#Question id: 8888
#Unit 9. Diversity of Life Forms
#Question id: 12627
#Unit 6. System Physiology – Plant
#Question id: 6953
#Unit 5. Developmental Biology
Maternal factors are:
#Question id: 19451
#Unit 13. Methods in Biology
#Question id: 4651
#Unit 11. Evolution and Behavior
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