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UNIT - 8 AP BIOLOGY Flashcards

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13269295507List the four derived characteristics of the members of the Phylum ChordataNotochord, Dorsal Hollow nerve, Pharyngeal Slits, Muscular, Post Anal-tail0
13269336782NotochordA flexible rod that supports a chordate's back1
13269342672Dorsal Hollow Nerve Chordnerve cord found in all chordates that forms the spinal cord and brain2
13269342845Pharyngeal SlitsA gill structure in the pharynx.3
13269351466Muscular, Post-Anal Tail (Chordates)Tail that extends posterior to the anus.4
13269382734ChordateAnimals with a notochord, most have a backbone.5
13269387660Urochordatestunicates6
13269391649LanceletsCephalochordata7
13269398428craniateA chordate with a head.8
13269401145VertebrateAn animal with a backbone9
13269401146Sessilerooted10
13269408125Motileable to move11
13269409581Somitesblocks of tissue that form along the sides of the embryo.12
13269418852tertapodsVertebrates that have limbs with digits13
13269427479Amniotic Eggcontaining amniotic fluid, cushion for embryo14
13269457798Agnathansjawless fish15
13269459759Allantoisacids in gas exchange and waste management16
13269464879Amnioninnermost layer of the fetal membrane17
13269467401ChorionOutermost layer of the two membranes surrounding the embryo; it forms the fetal part of the placenta.18
13269471364Yolk Sacvistigial in humans; provides nutrients in embryo.19
13269479405TheropodA member of a group of dinosaurs that were bipedal carnivores.20
13269485499EndothermicAbsorbs heat21
13269487602Ectothermiccold blooded22
13269491627OstrivhthyesJawless, Caryilagenous, Horny Fish.23
13269505313orders of amphibiansUrodela, Anura, Apoda24
132695114883 groups of monophyletic AmniotesSynapsids, Anapsids, DIapsids25
13269529143Mammals are classafied because ofMammary glands, placenta26
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