Questions: Because of selection, many bacterial species have become resistant to antibiotic drugs.
Transcript text: Because of selection, many bacterial species have become $\square$ to antibiotic drugs.
Solution
The answer is: resistant
Explanation:
The term "resistant" is used to describe how many bacterial species have developed the ability to survive and thrive despite the presence of antibiotic drugs. This resistance is a result of natural selection, where bacteria that have mutations allowing them to survive antibiotic treatment reproduce and pass on these traits to their offspring.
Other potential words like "susceptible" or "sensitive" would imply that the bacteria are affected by the antibiotics, which is the opposite of what the sentence is conveying.
"Resistant" accurately captures the concept of antibiotic resistance, a significant concern in medical and scientific communities.