Station 1- Whale Fossil Record Whale fossils 1.Use the pictures provided: put The whales in order from newest to oldest pictures. (Best guess!) A B E C F D

Station One - Diagram Two: 7. When you look at a fossil record, how do you determine oldest to most recent organisms? 8. What are some possible environmental conditions that lead to the evolution from a fish to the amphibian?

Station Two: Frogs on different islands have different coloring Station Two: Frogs on different islands have different coloring. Use that information and this picture to answer A and B.

Station Three- Homologous Structure Homologous body structures: structures that are built the same but may be used differently Image B and G need to be put in the drive

Station Three: Image B

Consider Function Versus Structure Station Three Image G. Consider Function Versus Structure (These species are not closely related.)

Station Four- Vestigial Structures What is the vestigial structure in a Bottlenose Dolphin and what was it originally used for? The tail bone (coccyx) in humans is a vestigial structure.

Station 5 Embryology Click on the Link to answer the station questions. Embryo Link

Station Six A- DNA Analysis A. Looking at the big cat diagram (on the next slide) which two cats are most closely related (Hint: compare the codon sequences) Cheetah: ATC CGC TGA TTA TTT TCA ACT AAT CAT AAA GAT ATC GGT ACT CTT TAC CTC CTG Leopard: AAC CGC TGA CTA TTT TCA ACC AAT CAC AAA GAT ATT GGA ACT CTT TAC CTT CTA Tiger: AAC CGC TGA CTA TTT TCA ACC AAT CAC AAG GAT ATT GGA ACT CTT TAC CTT TTA

Station Six A- DNA Analysis Big Cat Diagram

Station Six B- DNA Analysis: go to back counter Place the animals on the cladogram from the most closely related to the shark down to the dolphin. (Hint: the organisms that are the most closely related have the most letters or codons in common) Use the DNA Sequence Cards provided at your table to put the organisms in the correct order. Shark Camel Dolphin