Question

based on the data given, what is the best conclusion to be drawn?
a over time, due to evolution by means of natural selection, resistant weeds survived, reproduced, and passed on their herbicide resistant genes.
b over time, the amount of herbicide resistant plants increased due to an increase in farming.
c more weeds are killed today by herbicides than any other time in history.
d herbicide is a natural mutagen, causing weeds to turn into super weeds.

Explanation:

The graph shows an upward trend in herbicide-resistant weeds over time. Option A aligns with natural selection: resistant weeds survive herbicide exposure, reproduce, and pass on resistance genes, explaining the increase. Option B lacks evidence of farming increase; Option C contradicts the trend (more resistant weeds mean fewer killed); Option D incorrectly labels herbicides as natural mutagens (they select existing resistance, not cause it).

Answer:

A. Over time, due to evolution by means of natural selection, resistant weeds survived, reproduced, and passed on their herbicide resistant genes.