There is less diversity hope this helps
He found that the recessive trait such as the short plants disappeared, but only the dominent trait stayed which is tallness. When he allowed them to self pollinate, the recessive gene which is the shortness reappeared.
Answer:
resistance
Explanation:
When bacteria become resistant, the original antibiotic can no longer kill them. These germs that are resistant can grow, spread, and can cause infections that are hard to treat.
B is the answer. evolution