If evolution occurs through gradations, the critics say, how could it have created the separate parts of the eye -- the lens, the retina, the pupil, and so forth -- since none of these structures ...

Alternatively, students could explore the different parts of the eye. Given a diagram of the eye, students could be asked to add labels and annotation to describe the different parts.

Eye Lenses The eye lenses are also a part of the human body that does not grow. The size of the eye lenses remains the same ...

Alternatively, students could explore the different parts of the eye. Given a diagram of the eye, students could be asked to add labels and annotation to describe the different parts.