BIOA01H3 Lecture Notes - Lecture 4: Tetrapod

• School: UTSC
• Department: Biological Sciences
• Course: BIOA01H3
• Professor: Monica Sauer

Document Summary

Slide 2: some traits held in common life forms. Slide 3: transitional form: they are the changes in between an ancestral form and that of its descendant. Slide 5: about 375mya they found a creature that was an intermediate between fish and amphibian. Whales have a galvic gurgle that are the same as ours. Slide 8: change over time: loss of digits. Slide 9: birds are thought to be evolved form of dinosaurs. Slide 10: a whole lineage of dinosaurs that had feather but used for other function. Slide 13: vestigial traits: traits in organism that are no longer useful. They are homologous functional traits in closely related species. Slide 16: vestigial traits in plants: have showy flowers & pollen despites asexual reproduction.