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Hace 23 horas · Study with Quizlet and memorize flashcards containing terms like How is Earth unique from other planets?, How long ago did life first appear on Earth?, What is the relationship between planetesimals and protoplanets? and more.
B) You may find fossils of the first reptiles or jawed fishes below. C) The Mesozoic layers will be present underneath. D) A road cut in your area would reveal exactly the same species of fossils as a road cut through a Permian layer in Asia.
Hace 23 horas · Birds have the derived characteristic of being warm blooded, like mammals. c.) Feathers are a derived characteristic that first evolved in reptiles. Variations within a species are an important part of Charles Darwin's theory of evolution.
