Question 6-9 use this reconstructed evolutionary tree of theropods diverging from Ornithischian dinosaurs. In what sense can we say that birds are dinosaurs? a. Birds are closely related to dinosaurs. b. Birds evolved just before dinosaurs went extinct, and interacted with them. c. Dinosaurs are paraphyletic; dinosaurs and birds together form a monophyletic group. d. Dinosaurs do not form a clade; a clade obtains when dinosaurs and birds are grouped together. e. Both c and d.
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Step 1: Dinosaurs are a group of reptiles that lived millions of years ago, including well-known species like Tyrannosaurus rex and Velociraptor. Show more…
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