A lungs B wings C petals D claws E All of these choices are correct 84What is a

A lungs b wings c petals d claws e all of these

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A)lungsB)wingsC)petalsD)clawsE)All of these choices are correct.84.What is a disadvantage of using fossils to reconstruct phylogenetic history?Page 33
85.Among the organisms listed below, which is MOST likely to be fossilized?86.Why is the fossil record NOT a complete catalog of biological history?87.Among the environments listed below, in which are fossils MOST likely to form?A)desertB)tropical rainforestC)tundraD)shallow lake bedE)fast-flowing creek88.Pterosaurs are an extinct group of flying reptiles. Paleontologists accept that pterosaurs evolved flight independently of birds. What evidence BEST supports such a conclusion?89.In what way have mass extinctions catalyzed evolutionary radiation?90.Lungfish and lizards both have lungs. Can we conclude from this observation that Page 34
lungfish are the sister group of lizards?91.In 2027, an unmanned rover lands on Mars, scoops pieces of ancient sedimentary rock into its interior, and then makes careful chemical analyses. Back on Earth, scientists are astonished to find that the rocks contain traces of RNA, much like that in ribosomes.

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