Campbell Biology 10th edition chapter 33 Flashcards

1932645030	invertebrates	animals that lack a backbone	0
1932645031	filter feeders	filter out food particles suspended in the surrounding water as they draw it through their body	1
1932645032	spongocoel	The central cavity of sponges that water passes into	2
1932645033	choanocytes	collar cells, engulf other bacteria/particles by phagocytosis	3
1932645034	mesohyl	a gelatinous region between the two layers of cells of a sponge	4
1932645035	amoebocytes	Cells that move using pseudopods and perform different functions in different animals	5
1932645036	hermaphrodites	individual functions as both male and female in sexual reproduction by producing sperm and eggs	6
1932645037	gastrovascular cavity	in cnidarians, central digestive compartment	7
1932645038	polyps	cylindrical forms that adhere to the substrate by the aboral end of their body and extend tentacles to trap prey	8
1932645039	medusa	flattened, mouth-down version of the polyp	9
1932645040	cnidocytes	A specialized cell for which the phylum Cnidaria is named; consists of a capsule containing a fine coiled thread, which, when discharged, functions in defense and prey capture	10
1932769594	nematocysts	Specialized organelles within cnidocytes that eject a stinging thread	11
1932769595	exoskeleton	hard external skeleton made of calcium carbonate	12
1932769596	protonephridia	an excretory system, such as the flame bulb system of flatworms, consisting of a network of tubules lacking internal openings	13
1932769597	planarians	Phylum Platyhelminthes, Class Turbellaria, eyespots on the head contain photoreceptors and gastrovascular cavity with single opening on underside of body	14
1932769598	alimentary canal	a digestive tube with 2 openings	15
1932769599	parthogenesis	used by rotifers, , reproduction that consists of only females that produce more females from unfertilized eggs	16
1932769600	Ectoprocts	colonial animals that superficially resemble clumps of moss, part of Lophophores	17
1932769601	Brachipods	lams shells, resemble clams/hinge shelled molluscs, part of Lophophores	18
1932769602	foot	used for mollusk movement	19
1932769603	visceral mass	contains most of the mollusk internal organs	20
1932769604	mantle	fold of tissue that drapes over the visceral mass and secretes a shell (if present)	21
1932769605	mantle cavity	houses gills, anus, and excretory pores	22
1932769606	radula	strap-like organ, scrapes up food	23
1932769607	ammonites	Shelled cephalopod animals that were the dominant invertebrate predators for millions of years ending with the mass extinctions at the end of the Cretaceous period	24
1932769608	cuticle	tough external coat	25
1932769609	molting	Process in which an arthropod sheds its exoskeleton and manufactures a larger one to take its place	26
1932769610	open circulatory system	hemolymph is propelled by a heart through short arteries and then into spaces called sinuses surrounding the tissues and organs	27
1932769611	chelicerates	part of arthropods, sea spiders, horseshoe carbs, scorpions, ticks, mites and spiders	28
1932769612	myriapods	centipedes and millipedes	29
1932769613	pancrustaceans	insects, lobsters, shrimp, barnacles, other crustaceans	30
1932769614	celicerae	claw-like feeding appendages, serve as pincers/fangs	31
1932769615	eurypterids	water scorpions, part of chelicerates	32
1932769616	book lungs	stacked plate-like structures contained in an internal structure, used for gas exchange	33
1932769617	incomplete metamorphasis	type of insect development characterized by a similar appearence throughout all the stages of the life cycle: egg, nymph, adult	34
1932769618	complete metamorphosis	Insect development consisting of four stages: egg, larva, pupa, and adult	35
1932769619	echinoderms	A member of a group of slow moving or sessile marine animals characterized by a rough or spiny skin, a water vascular system, an endoskeleton, and a radial symmetry in adults, with examples such as sea stars, sea urchins and sand dollars	36
1932769620	water vascular system	A network of hydraulic canals unique to echinoderms that branches into extensions called tube feet, which function in locomotion, feeding, and gas exchange	37