TASK DEFINITION: In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.
PROBLEM: Question: What are unique in having adaptive immunity in addition to innate immunity? Answer: vertebrates

SOLUTION: Vertebrates are unique in having adaptive immunity in addition to innate immunity.

PROBLEM: Question: What happens when forces of evolution work over a long period of time? Answer: macroevolution

SOLUTION: Macroevolution happens when forces of evolution work over a long period of time.

PROBLEM: Question: How do roundworms reproduce? Answer: sexually

SOLUTION:
Sexually do roundworms reproduce.