Chapter 33 and 34 - Flashcards
21 Cards in this Set
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chordate pharyngeal slits appear to have functioned first as
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suspension feeding devices
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which extant chordates are postulated to be most like the earliest chordates in appearance
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lancelets
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the feeding mode of the extinct conodonts was
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predation
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ray finned fishes are characterized by
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bony endoskeleton, operculum, and usually a swim bladder
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which are the ONLY extant animals that descended directly from dinosaurs?
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birds
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hominoids, hominins, HOMO, anthropoids, primates- put in order of most inclusive
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primates
anthropoids
hominoids
hominins
Homo
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which cells in sponge are primarily used for trapping and removing food particles from circulating water
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choanocytes
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gastrovascular cavity, polyp stage, medusa stage, cnidocytes, pseudocoelom which are Cnidaria
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gastrovascular cavity
polyp stage
medusa stage
cnidocytes
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which molluscan class includes orgs that are primarily suspension feeders
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bivalves
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which annelid class has parapodia
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polychaeta
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characteristic of nematodes
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they have only longitudinal muscles
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characteristics of arthropods
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protostome development
bilateral symmetry
3 embryonic germ layers
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what distinguishes complete metamorphosis from incomplete in insects?
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radically different appearance b/w adults and earlier life stages
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what is a characteristic of adult echinoderms?
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secondary radial symmetry
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protostomes that have open circulatory system and exoskeleton of chitin=phylum?
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ARTHROPODA
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protostomes with drape of tissue that may secrete a shell=which phylum?
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Mollusca
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diploblastic
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has 2 germ layers-endoderm and ectoderm
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diplostic phylum of aquatic predators
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Cnidaria
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Deuterostomes that have an endoskeleton are part of which phylum
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Echinodermata
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radula is present in members of which classes
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CHITONS
GASTROPODS
CEPHALOPODS
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they may use a gastrovascular cavity as a hydrostatic skeleton
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Phylum Cnidaria
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