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Sponge , worm and cnidarians Answer Key

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Vocabulary
#1 animals without a backbone invertebrate
#2 body parts arragned in a circle like a wheel hub Radial symmetry
#3 body plan that is bell-shaped medusa
#4 replacing body parts regeneration
#5 animals that produce both sperm and eggs hermaphrodites
Vocabulary 2
#1 Eats other animals carnivore
#2 remains attached to one place for life span sessile
#3 located on inside of sponge; help water movement collar cells
#4 body plan that is shaped like a tube or vase polyp
#5 young organism larva
Symmetry:radial, bilateral or asymmetrical
#1 sponge asymmetrical
#2 flatworm bilateral
#3 jellyfish radial
#4 fish bilateral
#5 starfish radial
Worms
#1 Tapeworms lack this a digestive system
#2 This type of worm causes heartworm in dogs roundworm
#3 Triconosis is caused by this worm tapeworm
#4 the only worm with a mouth and an #!!##!!##!!##!!# roundworm
#5 these two spots on a flatworm can sense light light spots
Cnidarians and Sponges
#1 the sharp structures on a sponge are called this spicules
#2 A long time ago scientists thought sponges were really this plants
#3 sponges reproduce this way sexually and asexually
#4 this helps sponges to filter food spongin
#5 this free living cnidarian has long stinging tentacles with a bell shaped body jellyfish
Final Question
Schistosomiasis is a human disease caused by this blood flukes