BIO211H5 Lecture Notes - Lecture 8: Banded Iron Formation, Continental Crust, Canadian Shield
Document Summary
The eye is often cited by those that do not accept evolutionary theory as an example of something that is too complex to have evolved. The diagram shows that the eye has in fact evolved from an organ in its primitive stages to an advanced organism with complex functions. The hoof on a horse is a single digit. Over time, they ve lost their fingers from five digits to just two digits. Now, only the middle finger and the thumb are left on a horse s hoof. Horses start with having molars similar to ours. Over time, horses get bigger, reduce the number of digits on their fingers, and their teeth become more specialized for chewing. All of this happens because the environment that they inhabit changes. They develop specialized adaptations for living in open environments. In the time period that we re speaking of, you have. North america going from being a tropical jungle to open plains.
