ex:1. The gill slits are only found in the front section of the amphioxus | 1. Because the front region contains the pharynx which has a current of water going through it. |
2. Think of more significant observations | -There are many possibilities -Be sure a reason is placed opposite in almost every case. |
1. Did we see how gill slits could change function? for what? Why would this be logical?
2. How was the principle of evolutionary opportunism brought in the lab? 3. How was the principle of the phylogeny brought out? (See handout in phylogeny of Chordates) 4. How is amphioxus like a lamprey adult? Like a lamphrey larva? 5. Why couldn't amphioxus be the actual ancestor of vertebrates? 6. What significance could you attach to the pattern of muscles in amphioxus? *Note: If you did a good job on your observations, you can use material on your chart, but elaborate more on it after more research and extra reading (if you wish) 7. why were gill grooves so valuable in later evolution? |