Final answer:
According to the theory of evolution, a new trait must be able to be passed on to the next generation for it to become more prevalent in a population.
Step-by-step explanation:
True. According to the theory of evolution, a new trait must be able to be passed on to the next generation. This is essential for the trait to become more prevalent in a population over time. Traits that are advantageous to an organism's survival and reproduction are more likely to be passed on to future generations, while traits with disadvantages may be less likely to be passed on. For example, a bird that possesses a longer beak may be better able to obtain food and have higher chances of surviving and reproducing, passing on the trait to its offspring.
Learn more about Trait inheritance in the theory of evolution