Select the most appropriate option to fill in blank number 4.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. distinct.
"Distinct" is the best choice because it means clearly different or unique, which fits the context of comparing the tuatara's teeth to other reptiles.
The other options are less suitable: "separate" implies physically apart, "discrete" refers to being individually separate but not necessarily unique, and "sharp" describes the nature of the teeth, not their comparison.