Guide Questions: 1. Based on the data table, which is the oldest era? 2. How old is the shortest era? 3. How old is the Cenozoic Era? 4. What dating method is applied in the activity? Why? 5. Where can we apply the relative dating method?

Unlike mendel's pea plants,humans can have a variety of heights,not just tall or short.what does this mean for human height? a.height is controlled by one gene b.height is controlled by more than one c.height is not genetic d.height is solely determined by whether or not you eat your vegetables