Multiple ChoiceIf an animal has segments, bilateral symmetry, pharyngeal clefts, a post-anal tail, and deuterostomic development, it must be a member of the __________. 1135views
Multiple ChoiceWhich of the following chordate characteristics contributes most to the formation of your ears? 1235views
Multiple ChoiceWhich of the following chordate characteristics contributes most to suspension-feeding devices in many invertebrate chordates? 1175views
Multiple ChoiceWhich of the following can be found in vertebrates but not in lancelets and tunicates? 1335views
Multiple ChoiceA lamprey, a shark, a lizard, and a rabbit share all the following characteristics except __________. 1645views
Multiple ChoiceThe operculum was an important adaptation for fish because it helps with __________. 1197views
Multiple ChoiceWhich of the following organisms is most closely related to the ancestor of modern amphibians? 1613views