Pill bugs or sow bugs often found under rocks and logs in moist places have the ability to roll up into a ball when disturbed. Sow bugs are really crustaceans not insects. Therefore sow bugs do not have
1 of 20What name is given to the food-trapping cells of sponges?PhagocytesAmoebocytesCnidocytesChoanocytes2 of 20All animalsare prokaryotic.are heterotrophic.have cell walls made of chitin.obtain food by absorption.3 of 20Features unique to mammals includethe presence of hair.extended parental care of the young.being endotherms.having no egg-laying members.4 of 20Which of the following levels of structure encompasses all the others?TissueCellOrganOrganism5 of 20Which of the following animals does not have a body cavity?AntMouseFlatwormClam6 of 20Sharks are a type ofTunicate.Cartilaginous fish.Bony fish.Lungfish.7 of 20The water vascular system of a sea star functions inmovement of the tube feet.circulation of nutrients around the body.pumping water for swimming movements.buoyancy8 of 20Neurons are specialized cells characteristic ofmuscle tissue.connective tissue.epithelial tissue.nervous tissue.9 of 20A(n) ______ is an example of an invertebrate chordate.snakeechinodermlanceletfish10 of 20Animals probably evolved from protists. How do animals differ from these protist ancestors?Animals are eukaryotic.Animals have more specialized cells.Animals are heterotrophic.Animals are able to reproduce.11 of 20Homeostasis isthe exchange of materials with the surrounding environment.the idea that all vertebrates are built in a similar way.the correlation of structure and function.maintaining a relatively constant internal environment.12 of 20Unique features of vertebrates include the presence of a(n)skull and backbonenotochordendoskeletonpharyngeal slit13 of 20A marine biologist dredged up a small animal from the ocean floor. It was uniformly segmented with short stiff appendages and soft flexible skin. It had a complete digestive system and a closed circulatory system but no skeleton. Based on the description this animal sounds most like a(n)lancelet.crustacean.annelid.mollusk.14 of 20The feature present in reptiles and absent in amphibians that freed reptiles from the dependence onwater for reproduction isparental care of eggs.metamorphosis.the lateral line system.the amniotic egg.15 of 20A change in the body often triggers a response that counteracts the change. This kind of response is known asnegative feedback.empowerment.cause and effect.positive feedback.16 of 20A _____ is a chordate but not a vertebrate.squidtunicatesharkfrog17 of 20Pill bugs or sow bugs often found under rocks and logs in moist places have the ability to roll up into a ball when disturbed. Sow bugs are really crustaceans not insects. Therefore sow bugs do not havean exoskeleton.gills.three pairs of legs.antennae.18 of 20Which of the following tissues produces voluntary body movements?Smooth muscleSimple cuboidal epitheliumCardiac muscleSkeletal muscle19 of 20Which of the following are listed in the correct hierarchal order?System-tissue-organCell-tissue-organOrgan-tissue-systemTissue-cell-organ20 of 20Which of the following animals displays radial symmetry?A wormA sea anemoneA fishA lobster
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