BIOL 1002 : Exam4
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Practice ques: the animal phylum that contains the greatest number of named species is _____, mollusca, arthropoda, chordata, annelia. Echinoderms may not look like chordates which includes the vertebrates, but they share a common developmental plan. Mouth forms opposite of blastopore phylum echinodermata. Practice ques: which of the following is not true, all chordates have notochords, all chordates have pharyngeal pouches, all chordates have post-anal tail, all chordates have vertebrae. Although some species possess some of these traits only during embryonic devel. Draws water in through incurrent siphon filtering food particles tunicates posses the chordate charc during their larval stage. Craniates retain chordate features throughout lifespan the origin of the head in chordates allowed some to become active predators. Hagfishes the least derived extant species of craniate jawless, marine craniates. Cartilaginous skull and axial rod derived from notochord. 34. 3 vertebrates are craniates that have a backbone they have --
