Biology for IGCSE & O level - Variation And Selection (Section 6 - No. 39)
Which of the following scenarios best represents natural selection?
A farmer selectively breeds cows for increased milk production.
The environment killing specific fish.
A scientist creating a genetically modified crop.
A population of insects evolving resistance to a pesticide.
Erläuterung
The insects' survival and reproduction are linked to their resistance gene.