819
HardCraft and Structure
While most animals are incapable of passing somatic mutations—genetic alterations that arise in an organism’s nonreproductive cells—on to their offspring, elkhorn coral (Acropora palmata) presents an intriguing ______: in a 2022 study, researchers found that elkhorn coral produced offspring that inherited somatic mutations from a parent.
Which choice completes the text with the most logical and precise word or phrase?