AP Biology Exam 10

138432371	notochord	what is the flexible rod of the chordate?
138432372	bone, spine	what is the notochord replaced by in adult form?
138432373	brain and spinal chord	what does the dorsal, hollow nerve chord develop into?
138432374	pharyngeal gill slits	what functions in filter feeding and gas exchange in chordates?
138432375	digestive system	what do the gill slits replace in chordates?
138432376	cephalochordata	which subphyla of chordata contains lancelets?
138432377	lancelets	what are tiny marine animals that retain the four characteristics of chordates in adults?
138432378	urochordata	which subphyla of chordata contains tunicates and sea squirts?
138432379	vertebrates	which subphyla of chordata contains organisms in which the notochord is replaced by vertebrae which encloses the nerve chord?
138435510	agnatha	which class contains lampreys and hagfish?
138435511	placodermi	jawned fish, went extinct 350 mya
138435512	lampreys and hagfish	ostracoderms, jawless, small, lack paired fins
138435513	condrichthyes	cartilinginous fish, sharks rays
138435514	lateral line system	microscopic organs along sides of fish's body which are sensitive to water pressure changes
138435515	internal fertilization	how do condrichthyes reproduce?
138435516	osteichthyes	which class contains bony fish?
138435517	operculum	flap over gill chamber that allows fish to pull water over gills without moving?
138435518	bony fish	which kind of fish has mucus on their scales and an operculum?
138435519	amphibia	which class contains frogs, salamanders, newts, toads
138435520	mouth and across skin	how do amphibians have gas exchange?
138447028	reptilia	contains lizards, snakes, turtles, crocodiles
138447029	keratin	what are the scales of reptiles made out of?
138447030	prevents drying out	what is the purpose of keratin on scales?
138447031	3 chambered heart	what kind of heart do reptiles have?
138447032	4 chambered heart	what kind of heart do birds have?
138447033	endothermic	how do birds retain metabolic rate?
138447034	lack keeled breastbone	what is the characteristic of flightless birds?
138447035	monotremes	group of mammals that lay eggs
138447036	marsupials	group of mammals that give birth to immature young
138447037	placentals	group of mammals that nourish embryo in womb of mother
138447038	acoelomate	solid body with no body cavity between digestive tract and outer wall; single opening with mouth and anus
138447039	pseudocoelomate	have fluid filled body cavity not lined with mesoderm
138447040	coelomate	true body cavity developed within medoderm lined with mesoderm
138447041	zygote	first stage of embryo development
138447042	morula	solid mass of cells
138447043	morula	second stage of embryo development
138447044	blastula	hollow ball of cells
138447045	blastula	third stage of embryo development
138447046	gastrula	fourth stage of embryo development
138447047	cleavage	what produces that morula
138447048	gastrulation	what produces coelom, mouth, and anus
138574997	protostomes	mouth from blastopore
138574998	deuterostomes	anus from blastospore
138574999	blastospore	first opening formed
138575000	protostome	coelomate that has determinate cleavage
138575001	deuterostome	coelomate with interdeterminate cleavage
138575002	diploid stage	dominant generation for animals
138575003	endoderm	inner layer, digestive tube, liver, lungs
138575004	mesoderm	middle layer, muscles and other organs
138575005	ectoderm	outer layer, outer covering, CNS
138575006	hemolymph	which chemical is propelled through arteries in an open circulatory system