Give an example of a vestigial structure

Look at the six embryos in their earliest stages. Describe the patterns you see. What physical similarities exist between each of these six embryos.

For each animal, indicate what type of movement each limb is responsible for.

Animal Primary Functions Human Using tools, picking up and holding objects Whale Cat Bat Bird Crocodile

What kind of sensory adaptation would you hypothesize the cave fish has to allow it to navigate in a cave, including catching and eating food?

Give an example of a homologous structure.

Give an example of an analogous structure.

Below are some vestigial structures found in humans. For each, hypothesize what its function may have been. Structure Possible Function?

1. Wisdom teeth ?
2. Appendix ?
3. Muscles for moving the ear ?
4. Body hair ?
5. Little toe ?
6. Tailbone ?