phylum, Cnidarian Phylum Nematoda Phylum Platyhelminthes Phylum Porifera Flashcards

818255980	Phylum Cnidarian	corals, jellyfish, & hydras; radially symmetric & diploblastic; 2 body plans : Polyp & Medusa, animals whose stinging cells are used to capture their prey and defend themselves, and who take their food into a hollow central cavity., A. Radially symmetric, diploblastic B. Two distinct body plans (medusa & polyp) C. Rudimentary Digestive tract / circulatory system called gastrovascular cavity D. Nervous system - nerve net & ocili E. muscle-like structures F. Cnidocytes contain nematocysts g. gastrovascular cavity: functions both in digestion an dcirculation	1
818255981	Phylum Nematoda	roundworms; bilaterally symmetrical; cylindrical body; gut with 2 openings; many parasitic; most are aquatic; example: hookworm, roundworms; bilaterally symmetrical; cylindrical body; gut with 2 openings; many parasitic; most are aquatic; example: hookworm	2
818255982	Phylum Platyhelminthes	flatworms; bilateral symmetry; three cell layers; one opening; parasitic; ex. tape worm, planarian, flatworms; bilateral symmetry; three cell layers; one opening; parasitic; ex. tape worm, planarian	3
818255983	Phylum Porifera	sponges; sessile (attached at base; don't move); 2 layers; filter feeders; body with pores, sponges; sessile (attached at base; don't move); 2 layers; filter feeders; body with pores	4
818255984	radial symmetry	body plan in which body parts repeat around the center of the body; characteristic of sea anemones and sea stars, body plan in which body parts repeat around the center of the body; characteristic of sea anemones and sea stars	5
818287522	Phylum Annelida	little rings, Head and tail with similar body segments, have closed circulatory system	6
818287523	tissues	groups of specialized cells and cell products that work together to perform specific functions	7