Through careful observation, Charles Darwin came to understand that: Group of answer choices 1. those individuals whose variation gives them an advantage in staying alive long enough to reproduce are more likely to pass their traits on to the next generation 2. finches always have the same beak shape and size populations of plants and animals in nature most often consist of individuals that are clones of each other 3.populations of a species that become isolated from others by adapting to different environmental niches quickly become extinct