Question

Appearance of resistant organisms in a time scale of months and years and not centuries is mainly attributed to

Adaptive radiation

Anthropogenic action

Random mating

Branching descent​

Answer 1

Answer: Adaptive radiation

Explanation:

Adaptive radiation is a process in which organisms diversify rapidly from an ancestral species into a multitude of new forms, particularly when a change in the environment makes new resources available, alters biotic interactions or opens new environmental niches.

Answer 2

Answer:

(B) Its Basically due to Anthropogenic Action

Explanation:

This is due to the involvement and actions of men and that's why these are described as the example of evolution by anthropogenic action.