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Chemistry LibreTexts

7.04 Week 7 Quiz

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  • cc_profilecc.exam.v0p1qmd_assessmenttypeExaminationqmd_scoretypePercentagecc_maxattempts1
    cc_profilecc.multiple_choice.v0p1Which term describes an extension of an organism's body?chitinappendagecuticleexoskeleton2100cc_profilecc.multiple_choice.v0p1Which arthropod group is extinct?trilobitescrustaceanscheliceratesmyriapods5100cc_profilecc.multiple_choice.v0p1The main disadvantage of an exoskeleton is that itrequires a closed circulatory system.allows too much environmental stimuli.does not support tissues against gravity.cannot grow and alter as the animal does.12100cc_profilecc.multiple_choice.v0p1An arthropod's body parts are segmented into similar sections thatperform identical functions among all arthropods.are made of cuticle that grows with the animal.have each evolved to perform a different function.form a tough biological "plywood."15100cc_profilecc.multiple_choice.v0p1Which term describes the process that arthropods use to develop a new exoskeleton?sheddingmoltingreforminggrowing18100cc_profilecc.multiple_choice.v0p1What are mandibles?hard shells made of protein and chitinclub-shaped appendages used for crushing preysensory organs made of modified cuticleappendages used to crush and bite food before ingestion24100cc_profilecc.multiple_choice.v0p1Which of the following body parts covers a crustacean's cephalothorax?chelipedswimmeretabdomencarapace28100cc_profilecc.multiple_choice.v0p1Which of the following body parts do chelicerates lack?appendagespedipalpsexoskeletonsmandibles32100cc_profilecc.multiple_choice.v0p1When spiracles on an arachnid's body open, they let the four adaptations that enable arachnids to conserve water, which one also removes wastes?waterproof cuticletracheabook lungsMalpighian tubules40100cc_profilecc.multiple_choice.v0p1Which of the following chelicerates are parasites of other animals?spidersscorpionshorseshoe crabsticks44100cc_profilecc.multiple_choice.v0p1Insects that look like miniature adults when they hatch have a pattern of development calledincomplete metamorphosis.gradual metamorphosis.partial metamorphosis.complete metamorphosis.45100cc_profilecc.multiple_choice.v0p1Which adaptation was most important in enabling insects to live on land?development of true independent flightevolution of specialized mouthpartsorganization of complex social structuresability to control water and gas exchange52100cc_profilecc.multiple_choice.v0p1All insects have threecompound eyes.jointed legs.sets of wings.body parts.56100cc_profilecc.multiple_choice.v0p1What does the proboscis allow some insects to do?suck and chew foodfeed on blood or plant nectarmanipulate food into the mouthcrush leaves and plant stems58100cc_profilecc.multiple_choice.v0p1What term describes an organism that carries a disease from one host to another?pathogen.pestvectorparasite63100cc_profilecc.multiple_choice.v0p1Insecticides are chemical compounds thatslow growth of plants that pests eat.kill insects and other arthropods.speed growth of particular insects.interrupt reproduction of insect pests.66100cc_profilecc.multiple_choice.v0p1Arthropods can spread disease to humans when the arthropodsfeed on the humans.suffer from the disease.bite animals that humans eat.are killed by insecticides.69100cc_profilecc.essay.v0p1qmd_computerscoredNo<p>Describe a situation in which natural selection could lead to an arthropod population that is resistant to pesticides.</p>100cc_profilecc.essay.v0p1qmd_computerscoredNo<p>What advantages do flying insects have over arthropods that can't fly?</p>100cc_profilecc.essay.v0p1qmd_computerscoredNo<p>Arthropods can also be useful to humans. List and discuss at least three specific situations or examples where arthropods are useful to humans.</p>100