AP Biology - Vertebrates Flashcards

6204063264	Phylum Chordata (Chordates)	1) notochord 2) dorsal tubular nerve cord 3) pharyngeal pouches 4) Postanal tail	0
6204063265	notochord	dorsal supporting rod located just below the nerve cord (embryonic)	1
6204063266	dorsal tubular nerve cord	becomes the brain in most chordates	2
6204063267	pharyngeal pouches	becomes gills or modified for various purposes	3
6204063268	cephalochordates	nonvertebrate chordates; lancelets (look like surgical knife) shallow water along most coasts feed on microscopic particles	4
6204063269	urochordates	nonvertebrate chordates live on ocean floor squirt out water from their excurrent siphon when disturbed bbilaterally symmetrical as larva sessile adults numerous cilia	5
6204063270	vertebrates	1) vertebral column 2) skull 3) endoskeleton 4) internal organs	6
6204063272	tetrapods	have four limbs	7
6204063273	amniotes	embryo surrounded by an amniotic membrane that encloses the amniotic fluid	8
6204063274	fishes	largest group of vertebrates	9
6204063276	Agnathans	jawless fish cartilaginous skeleton and persistent notochord cylindrical smooth, nonscaly skin lamphreys: parasitic or filter feeders	10
6204063277	Jawed Fishes	1) Ectothermy 2) gills 3) cartilaginous or bony exoskeleton 4) scales	11
6204063279	Chondrichthyes	cartilaginous fishes sharks, rays, skates, and chimeras 5-7 gill slits spiracles dermal denticles- tiny teeth-like scales sense electric currents, lateral line system, keen sense of smell biggest sharks are filter feeders	12
6204063285	Osteichthymes	bony fishes	13
6204063288	swim bladder	a gas-filled sac into which fish can secrete gases or from which they can absorb gases; altering its pressure; changes buoyancy	14
6204063290	amphibians	1) limbs (tetrapods) 2) smooth and nonscaly skin 3) lungs 4) double-loop circulatory pathway 5) sense organs 6) ectothermy 7) aquatic reproduction	15
6204063291	cloaca	terminal chamber common to the urinary, digestive and genital tract in amphibians	16
6204063293	Reptiles	1) paired limbs 2) thick and dry skin (impermeable to water) 3) efficient breathing 4) efficient circulation 5) efficient excretion 6) ectothermy 7) well-adapted reproduction (amniotic egg)	17
6204063294	Birds	1) feathers 2) modified skeleton 3) modified respiration 4) endothermy 5) well-developed sense organs & nervous system	18
6204063295	Mammals	1) hair 2) mammary glands 3) skeleton 4) internal organs 5) internal development	19
6204063296	Monotremes	egg-laying mammals that include only the duckbill platypus	20
6204063297	Marsupials	pouched mammals kangaroos, Tasmanian devils, wombats, sugar gliders	21
6204063298	Placental mammals	dominant group of mammals; dependent on placenta during development	22
6204063299	placenta	an organ of exchange between maternal blood and fetal blood	23