Answer:
The correct answer out of all the choices is A. natural selection, migration, and mutation. Conservation biologists are most interested in these three evolutionary mechanisms.
Explanation:
Hey,
Thomson's experiments with cathode ray tubes helped hi discover the electron,
Which Dalton didn't know about.
Dalton also thought that particles were indivisible which was also proved wrong by Thomson when he discovered the existence of subatomic particles.
Hope this helps!
Brainliest is always appreciated if you feel its deserved. :)<span />