6.05 Week 6 Quiz

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cc_profilecc.multiple_choice.v0p1A sessile animal is one that is unable tobud.reproduce.eat.move.4100cc_profilecc.multiple_choice.v0p1Sponges are the only animals that have nomouths.defenses.tissues.pores.7100cc_profilecc.multiple_choice.v0p1Cnidarian polyps reproduce byfertilizing eggs.creating buds.releasing gametes.developing planula.10100cc_profilecc.multiple_choice.v0p1What is mesoglea?a non-cellular jellylike material in cnidariansmuscle that changes an animal's shapedigestive enzymes inside a nematocystmaterial inside the eye of a cubozoa13100cc_profilecc.multiple_choice.v0p1Tapeworms live inswampy regions.vertebrate guts.hot, arid habitats.other worms' guts.18100cc_profilecc.multiple_choice.v0p1The coelom enables annelids tomove by crawling.digest organic material.defend themselves.reproduce asexually.21100cc_profilecc.multiple_choice.v0p1Which of the following describes a planarian?simple, nonparasitic, radial flukeparasite with multiple hostsbilateral, nonparasitic flatwormparasitic, gutless hermaphrodite27100cc_profilecc.multiple_choice.v0p1In mollusks, blood is pumped through thehemocoel.pharynx.radula.mantle.29100cc_profilecc.multiple_choice.v0p1What is a roundworm's cuticle made of?hairchitinskinscales34100cc_profilecc.multiple_choice.v0p1Roundworms that feed on their host's blood areannelids.arthropods.larvae.parasites.40100cc_profilecc.multiple_choice.v0p1Sea stars feed bymoving swiftly across the ocean floor to capture prey.using tube foot-like extensions to digest food.pushing their stomachs out of their mouths.grabbing swift-moving prey with their tentacles.43100cc_profilecc.multiple_choice.v0p1What is the term for the plates that form an echinoderm's skeleton?central diskscuticlegametesossicles48100cc_profilecc.multiple_choice.v0p1A sea star uses its tube feet tograb objects and move around.help digest and expel food.fill its radial canals with water.fend off and poison predators.49100cc_profilecc.essay.v0p1qmd_computerscoredNoMany species of roundworms are parasites of plants and animals. How is a roundworm's body plan related to its function as a parasite?100cc_profilecc.essay.v0p1qmd_computerscoredNoDescribe the feeding mechanism of sponges and identify how it is different from other animals.100cc_profilecc.essay.v0p1qmd_computerscoredNoWhat are the different ways in which nematodes can reproduce?100