Question 21

Some weed species have developed the ability to resist pesticides. How does the theory of evolution by natural selection help to explain his ability?

a
The weeds chose pesticide-resistant variations because their survival depended on it.
b
Due to genetic variations, some weeds in the population had the ability to resist pesticides.
c
As the weeds evolved, natural selection resulted in an unfavorable variation in a population.
d
In any population of weeds, some weeds will naturally be immune to all kinds of pesticides.