Which of the following is an example of a species changing over time. Choose all answers that are correct. A. A gardener notices a new kind of squash growing after he only planted seeds from his previous squash plants. B. A rabbit's ears are bigger than a mouse's ears. C. Some weeds have become resistant to a chemical designed to kill them. D. The purple- spotted butterflies in your collection have more spots than the purple-spotted butterflies your grandfather collected when he was a child. E. A giraffe's neck is longer than a deer's neck.