Zoology 2

How many tagmata do animals in the order Araneae have? A. 1 B. 2 C. 3 D. 4 E. 5

2

The chigger or "red bug" is a member of the arachnid order A. Scorpionida. B. Acarina. C. Opiliones. D. Araneae. E. Pseudoscorpionida.

Acarina

Spiders, ticks, and scorpions belong to the arthropod class A. Chilopoda. B. Pycnogonida. C. Insecta. D. Merostomata. E. Arachnida.

Arachnida

Brine shrimp and fairy shrimp are classified in the crustacean class A. Decapoda. B. Amphipoda. C. Branchiopoda. D. Anostraca. E. Isopoda.

Branchiopoda

A genus of scorpions known to have caused human deaths is A. Xiphosura. B. Opiliones. C. Loxosceles. D. Centuroides. Limulus.

Centuroides

Barnacles belong to the A. Cirripedia. B. Hexapoda. C. Amphipoda. D. Malacostraca. E. Branchiopoda.

Cirripedia

The two annelid subclasses containing the earthworms and the leeches have now been united into the class A. Hiruchaeta. B. Chaetognatha. C. Polychaeta. D. Oligodinea. E. Clitellata.

Clitellata

There are more species of insects in this order than in any other. A. Coleoptera B. Lepidoptera C. Hymenoptera D. Diptera E. Odonata

Coleoptera

Members of class —— are among the most numerous crustaceans, and are both marine and freshwater in distribution. A. Cirripedia B. Copepoda C. Branchiopoda D. Malacostraca E. Isopoda

Copepoda

Crayfish, lobsters, and shrimps belong to the order A. Maxillopoda. B. Hexapoda. C. Decapoda, D. Amphipoda. E. Branchiopoda.

Decapoda

Millipedes belong to the arthropod class A. Insecta. B. Diplopoda. C. Crustacea. D. Chilopoda. E. Branchiopoda.

Diplopoda

Insects in this order are characterized by having a single pair of wings on their mesothorax. A. Coleoptera B. Lepidoptera C. Hymenopiera D. Diptera E. Odonata

Diptera

Krill belong to the order A. Amphipoda. B. Euphausiacea. C. Cladocera. D. Anostraca. E. Isopoda.

Euphausiacea

Animals in which of the following phyla are not aschelminths? A. Acanthocephala B. Nematomorpha C Gastrotricha B. Nematoda

Gastrotricha

Bees, ants, and wasps belong to the insect order A. Odonata. B. Plecoptera. C. Coleoptera. D. Ephemeroptera. E. Hymenoptera.

Hymenoptera

Terrestrial crustaceans are quite rare, but terrestrial pill bugs belong to the order A. Amphipoda. B. Maxillopoda. C. Cladocera. D. Anostraca. E. Isopoda.

Isopoda

Which of the following orders of insects is ENTIRELY social? A. Diptera B. Homoptera C. Hemiptera D. Coleoptera E. Isoptera

Isoptera

Male mosquitoes and midges have specialized receptors for hearing at the bases of their antennae called A. tympanae. B. Johnston's organs. C. auricles. D. Jacobson's organs. E. coxal glands.

Johnston's organs.

Butterflies and moths belong to the insect order A. Homoptera. B. Odonata. C. Lepidoptera. D. Hemiptera. E. Neuroptera.

Lepidoptera

The tympanal organs of some insects in this order are able to hear ultrasonic frequencies, which helps them to evade bats. A. Coleoptera B. Lepidoptera C. Odonata D. Isoptera E. Hymenoptera

Lepidoptera

Which of the following is NOT a disease carried by an insect in some stage? A. malaria B. vellow fever C. bubonic plague D. Lyme disease E. typhus

Lyme disease

The class of crustaceans with the largest number of species is A. Maxillopoda. B. Branchiopoda. C. Cladocera. D. Malacostraca. E. Decapoda

Malacostraca.

sense physical displacement of body parts. A. Mechanoreceptors B. Tympanal organs C. Ommatidia D. Exterocepiors E. Nocicepiors

Mechanoreceptors

between larval and adult stages of arthropods reduces competition for resources. A. Asexual reproduction B. Regeneration C. Metamorphosis D. Ecdysis E. Parthenogenesis

Metamorphosis

are the excretory organs of most polychaetes. Chloragogues B. Metanephridia C. Osphradia D. Nuchal glands E. Ommatidia

Metanephridia

the ronter class amictic eggs develop exclusively by parthenogenesis A Phasmidia Is. Secemenica C. Seisonidea D. Monogononta E. Bdelloidea

Monogononta

Centipedes belong to the subphylum A. Insecta. B. Crustacea. C. Trilobita. D. Chilopoda, E. Myriapoda

Myriapoda

Millipedes, centipedes, pauropods, and symphylans are placed together in a subphylum called A. Hexapods. B. Diplopods C. Maxillopods. D. Chilopods. E. Myriapoda.

Myriapoda

Which of the following phyla of animals are not ecdysozoan? A. Arthropoda B. Nematoda C. Gastrotricha D. Nematomorpha E. Kinorhyncha

Nematomorpha

Dragonflies and damselflies belong to the order A. Ephemeroptera. B. Odonata. C. Orthoptera. D. Plecoptera. E. Hemiptera.

Odonata

"Daddy longlegs" belong to the arachnid order A. Opiliones. B. Acarina. C. Pseudoscorpionida. D. Scorpionida. E. Aranaea.

Opiliones

The class of annelids that contains some members with poison glands associated with their jaws is A. Polychaeta. B. Oligochaeta. C. Hirudinae. D. Gnathostomulida. E. Chaetognatha.

Polychaeta

The most speciose class of annelids is —- Its members are primarily marine. A. Chaetognatha B. Oligochaeta C. Hirudinea D. Gnathostomulida E, Polychaeta

Polychaeta

28. Sea spiders belong to the class A. Merostomata. B. Chelicerata. C. Arachnida, D. Pycnogonida E. Trilobita.

Pycnogonida

Like the tapeworms, acanthocephalans lack A. a nervous system B, a digestive tract. C. muscles. D. a reproductive system E. a cuticle.

a digestive tract.

In the class Clitellata, the larval form is A. a trochophore. B, absent. C. a veliger. D. dormant. E. free-living.

absent

Rotifer and other aschelminths exchange respiratory gases A. across the bodv surface B. through gills. C. through lungs D. with a tracheal system. dE. with dermal branchial

across the body surface

The echiurans and two groups of deep sea worms are likely to be A. removed from the Clitellata. B. removed from the Annelida. C. added to the subclass Hirudinea. D. added to the subclass Oligochaeta. E, added to the class Polychaeta.

added to the class Polychaeta.

Which of the following is not a synapomorphy that unites the members of the ecdysozoan clade? A. the blastopore develops into the anus B. loss of epidermal cilia C. possession of a cuticle D. shedding of cuticle through ecdysis E. all of the answers are correct

all of the answers are correct

which of the following types of environments would you find insects? A. terrestrial R. freshwater salt water D. aerial E. all of the answers are correct

all of the answers are correct

The wide distribution of routers makes can be attributed to A. resting eggs which can withstand adverse conditions B. the distribution of eggs by wind. C. the distribution of eggs by the feet of waterfowl. D. ability to reproduce parthenogenctically. E. all of the answers are correct.

all of the answers are correct.

Insects in which the larvae appear to be exact miniatures of the adults exhibit metamorphosis. A. paurometabolous B. hemimetabolous C. ametabolous D. holometabolous E. amphimetabolous

ametabolous

The major nitrogenous waste produced by annelids is A. ammonia. C. uric acid.

ammonia

The primary excretory product of a crayfish is A. urme B. ammonia. C. uric acid. D. sodium chloride. E. urea.

ammonia

Structures that function in chemoreception and are found at the anterior and posterior ends mmaodes arne A. spicules and lips. B. bursa and the nucleus. C. scalds and the placids. D. zonites and the mastax. E, amphids and the phasmids.

amphids and the phasmids.

A féature that does NOT characterize annelids is A. a ventral nerve cord. B. bilateral symmetry. C. a complete digestive tract. D. an acoelomate condition. E. triploblastic organization.

an acoelomate condition.

The superficial external rings on a leech are called: A. proglottids. B. tagmata. C. metameres. D. annuli. E. strobilia.

annuli

The majority of crustaceans are A, aquatic. B. terrestrial. C. very large. D. burrowing animals. B. monoecious.

aquatic

Most zoologists believe that the— were the first arthropods to invade land. A arachnids B. insects C. millipedes D. crustaceans E. centipedes

arachnids

Unlike other annelids, echiurans A. have an open circulatory system. B. do not possess setae. C. undergo radial cleavage. D. are not segmented. E. have enterocoelous coelom formation.

are not segmented

Which of the following phyla of animals is not considered lophotrochozoan? A. Annelida B. Mollusca C. Nemertea D. Arthropoda E. Platyhelminthes

arthropoda

Recent cladstic analyses of morphological and molecular data suggests that aschel that molt their cuticle are more closely related t A. annelids B, arthropods C. cyclophorans ID. D atvhelminths E. cnidarians

arthropods

Traditionally, the annelids have been considered closely related to A. echinoderms. B. hemichordates. C. arthropods. D. chordates. E. poriferans.

arthropods

44. Which of the characters below is not a feature of leeches? A. hypodermic impregnation B, asexual reproduction C. reciprocal sperm transfer D. sexually reproductive E. production of a cocoon

asexual reproduction

Some polychaetes exhibit epitoky; the A. anatoke B. heterotoke C. protogyn D. atoke E. hypertoke

atoke

Which of the following is not a type of insect pheromone? A. attack B. aggregation C trailing D, sex E. alarm

attack

Appendages of trilobites were divided into two lobes, hence they are called A. biped. B. uniramous. C. quadruped. D. aramous. E. biramous

biramous

17. Gas exchange between the blood of horseshoe crabs and seawater occurs through A. filamentous gills. B. book lungs. C. alvéolar lungs. D. book gills. E. dermal branchiae.

book gills.

Many arachnids utilize modifications of book gills. A. lamellae B. alveolar lungs C. book lungs D. trachea E. malpighian tubules

book lungs

Which type of crustacean do many zoologists believe to have the greatest number of individuals of any type of animal on the planet? A. isopods B. fairy shrimp C. brine shrimp D. copepods E. barnacles

brine shrimp

26. Which one of the following groups is holometabolous? A. grasshoppers B, butterflies C. mayflies D. silverfish E. dragonflies

butterflies

The portion of the crustacean exoskeleton that covers the cephalothorax is the A. locomotor tagma. B. carapace. C. telson. D. opisthosoma. E. uropod.

carapace

Each kind of individual in an insect colony is called a/an A. caste. B. race C. deme D. sociev E. aggregation.

caste

Rotifers are A primarily marine B. relatively large. C. characterized of a corona and mastax D. characterized by populations dominated by males. E. Not cuticle

characterized of a corona and mastax

The tough, leathery polysaccharide in the arthropod procuticle is A. lipoprotein. B. calcium carbonate. C. scleroprotein. D. chitin. E. glycogen.

chitin

Which of the following is NOT a characteristic of the phylum Annelida? A. body with metameric ségments B. chitinous exoskeleton C closed circulatory system D. ventral ganglionated nerve cords E. excretion by metanephridia or protonephridia

chitinous exoskeleton

In annelids, the —- is a site of amino acid metabolism. A. liver B. typholosole C, chloragogen tissue D. clitellum E. kidney

chloragogen tissue

43. Of the following features characteristic of oligochaetes, which is LACKING in polychaetes? A. coelom B. spiral cleavage C. setae D. triploblastic development E, clitellum

clitellum

The girdle-like structure used for mucus secretion during copulation in oligochaetes is the A, clitellum. B. parapodium, C. atoke. D. epitoke. E. prostomium.

clitellum

Annelids convert ammonia to urea in A. the metanephridia. B. calciferous glands. C. nuchal glands. D. clitellar tissue. E. chloragogen tissue.

cloragogen tissue

Polychaetes have a A. bloodless B. closed C. lacunar D. open E countercurrent

closed

The chelicerate opisthosoma A. bears the pedipalps. B. is the sensory tagma. C, contains digestive organs. D. bears chelicerae. E. bears walking legs

contains digestive organs.

Rotters derive their name from a characteristic ciliated structure called the located on the head. B. corolla C. gastrotrich D, corona E. proboscis

corona

The a thin-walled storage area in the oligochaete digestive tract. Blooms A. pharynx B. stomach C. crop D. esophagus E. gizzard

crop

The asche munths are the first animal group discussed so far (o possess a thin, tough outer covering called the A. skin. B. tegument. C. pellicle. D. epicens E, cuticle.

cuticle

External respiratory exchange in most annelids is accomplished by A. ventilation. B. active transport. C. endocytosis. D. facilitated diffusion. E. diffusion.

diffusion

Nematodes are typically A, dioccious and dimorphic. B. monoccious and dimorphic C. dtoecious and amorphic. D. monoecious and monomorphic.

dioccious and dimorphic.

Synchronous flight may be characterized by A, each wing beat being the result of one nervous impulse. B. very fast flight. C. considerable deformation of the exoskeleton during flight D. wing beats up to 1,000 cps E. utilization of stored energy.

each wing beat being the result of one nervous impulse.

The arthropod exoskeleton must be shed to allow growth. The shedding process is called A. sclerotization. B. ecdysis. C. calcification. D. articulation. E. metamorphosis.

ecdysis

The process of shedding the outer body covering is called A. autotomv B, ecdysis. C. syncytialism. E. lysis.

ecdysis

Emergence of an insect from a cocoon, chrysalis, or puparium is referred to as A. morphosis. B. instarring. C. pupating. D. eclosion. E. escape.

eclosion

Most insects are considered to be temperature regulation. A. homeotherms B. endotherms C. heterotherms D. ectotherms _. mesomens

ectotherms

The —- is the outer layer of the arthropod exoskeleton, and it is composed of a waterproofing waxy lipoprotein. A. lipocuticle B. mesocuticle C. epicuticle D. endocuticle E. sclerocuticle

epicuticle

The antennal or green glands of crayfish function in A. producing digestive enzymes. B. excretion. C. The antennal or green glands of crayfish function in E. sensing gravity.

excretion

The —- preadapted insects for success on land A. biramous appendage B. walking leg C. exoskeleton D. gills E. mandibles

exoskeleton

Which of the following groups of worms are not in the phylum Annelida? A. earthworms B. beard worms C. spoon worms D. peanut worms E. flatworms

flat worms

Insect dominance in terrestrial environments is due in part to the evolution of A. flight. B. cephalization. C. metamerism. D. eusociality. E. jointed appendages.

flight

The are unusual parts of the annelid nervous system responsible for rapid movements such as escape reactions. A. segmental ganglia B. subesophageal ganglia C. cerebral fibers D. giant fibers E. supraesophageal ganglia

giant fibers

As in birds, the —- acts to grind food in the oligochaete digestive tract A. gastric mill B. pharynx C. crop D. gizzard E. stomach

gizzard

Covering the tegument of acanthocephalans is a A. glycocalyx B. lorica C. sheath D. cuticle E. pellicle

glycocalyx

Beetles have hardened, protective forewings called A. naiads. B. rhabdomes. C. ommatidia. D. elytra. E. halteres.

halteres

Most hymenopterans have a —— sex determination system. A. diploid B. haploid C. haplodiploid D. diplohaploid E. diplodiploid

haplodiploid

The three tagmata of insects are the A. prothorax, mesothorax, and metathorax B. labrum, mandibles, and maxillae. C. coxa, trochantor, and tarsi. D. head, thorax, and abdomen. E. mouthparts, legs, and prolegs.

head, thorax, and abdomen

Mayflies and dragonflies exhibit —- metamorphosis A. hemimetabolous B. amphimela C. holometabolous I. pauromelabolous

hemimetabolous

Some insects, such as bees, have variable body temperature, but do use shivering thermogenesis. They are known as ectomerms B. mesotherms. C. endotherms. D. homeotherms E, heterotherms.

heterotherms.

Leeches belong to the annelid subclass A. Oligochaeta. B. Chaetognatha. C. Hirudinea. D. Gnathobdellida. E. Polychaeta.

hierudinea

The anticoagulant seefeted by leech salivary glands is A. hirudin. B. saliva. C. salivary amylase. D. hemerythrin. E. prothrombin.

hirudin

Members of the phylum Nematomorpha are commonly called A. onwors C horschair worms. ID. heartwonis ID. soinv-headed worms.

horsehair worms.

A repellent called A. carbon disulfide B. formic acid C. carbonic anhydrase D. hydrogen cyanide sulfur dioxide

hydrogen cyanide

Insect reproduction may be characterized by all of the following EXCEPT: A. drect spm trnsir copulatory organs C. indirect fertilization D. an ovipositor of the female E. sperm storage in the sperm receplacie

indirect fertilization

Some honeybees within a colony may forego the opportunity to reproduce, and instead work to maintain the colony. This social behavior may be explained as a type of A. female dominance. B. artificial selection. C kin selection. D. caste selection. E. weakness of some individuals

kin selection

Among insects, the upper and lower lips are sensory and are called the A. maxilla and maxilliped. B. labrum and the labium. C. chela and the cheliped. D. uropod and the tenson. E. mandible and the maxilla.

labrum and the labium.

Immature insects undergoing holometabolous metamorphosis are called because they are very different from the adult morphology. A. nymphs B. naiads C. larvae D. juveniles E. pupae

larvae

Chloragogen tissue of annelids is similar in function to the vertebrate A. kidneys. B. pancreas. C. gall bladder. D. liver. E. spleen

liver

Chloragogen tissue of annelids is similar in function to the vertebrate A. kidneys. B. pancreas. C. gall bladder. D. liver. E. spleen.

liver

Some rotifers have a "shell" composed of a thickened cuticle, called the functions in protection. B, lorica C. ossicles D. perfosirdcuff Is umbre

lorica

haploid mictic eggs of some rotters, if not fertilized, develop parthenogenchically A dormance. B, males. C. females. ID wincresss E. haploid larvac.

males

The excretory organs of insects are A. protonephridia. B. renettes. C. malpighian tubules D. metanephridia. E. coxal glands.

malpighian tubules

While aquatic arachnids utilize coxal glands for excretion, most terrestrial forms use ——— which conserve water. A. nephridia B. malpighian tubules C. diffusion glands D. green glands E. antennal glands

malpighian tubules

The arthropod subphyla Crustacea and Hexapoda both share A, mandibles. B. chelicera C. chelae. D. periopods, E. two pairs of antennae.

mandibles

The endocrine glands involved in the control of molting are the corpora cardiaca, the A. mandibular glands. B. maxillary glands. C. green glands. D. corpora quadrigemina E. prothoracic glands.

mandibular glands.

Kinorbynchs are found exclusively in —- environment B. freshwater C marine D. stagnant pond E. rapidly flowing stream

marine

The rotifer pharvnx contains a unique muscular structure called the food is ground and macerated A. odontophore B. crop C. gizzard D. radula E. mastax

mastax

is the segmental arrangement of body parts. A. Metamerism B. Triploblastism C. Tagmatization D. Serialism E. Cephalization

metamerism

In rotifers, two different kinds of eggs are produced. These are eggs. A. fertile; infertile B, mictic; amictic C. nucleated; unuclcated D. large; small E. shelled; unshelled

mictic, amictic

Recent evidence suggests that annelids share common ancestry with A. Mollusca. B. Nematoda. C. Chordata. D. Echinodermata. E. Kinorhyncha.

mollusca

Ecdysozoan animals A. are all pseudocoelomates. 13. are alacoclomates ( are all coelomates. .molt their cuncle

molt their cuticle

Clitelates may be characterized as —- with respect to reproduction. A. monoecious B. dioecious C. asexual D. protandric E. parthenogenic

monoecious

Immature stages of aquatic insects with hemimetabolous metamorphosis are called A. nymphs. b. pupae. C. caterpillars D. puparid. E, naiads.

naiads

The aschelmnins known as the A. nematodes I. routers C. kinorhynchs D. gastrotrichs E. nematomorphans

nematodes

The open, ciliated funnel of the metanephridium is the A. infundibulum. B. epitoke. C. nephrostome. D. nephridiopore. E. flame bulb.

nephrostome

are sensory pits on the heads of polychaetes with chemoreceptors for food A. Olfactors B. Auricles C. Statocysts D. Phasmids E. Nuchal organs

nuchal organs

Immature stages associated with hemimetabolous metamorphosis are called A. pupa B. instars. C. diapauses D. nymphs. E. caterpillars.

nymphs

The crustacean compound eye is composed of individual units called A. ommatidia. B. ocelli. C. eyespots. D. statocysts. E. photophores.

ommatidia

Much of the success of nematodes is due to their A lavdrostancekeleton b, well-developed circular and longitudinal muscles. L outer, noncellular, collagcnous cuticle ID. ciliated coverine E. parthenogenetic reproduction

outer, noncellular, collagcnous cuticle

Polychaetes are distinguished by lateral extensions of the body called A. parapodia. B. setae. C. prostomi. D. palps. E. tentacles.

parapodia

increase the surface area for respiratory exchange in some polychaetes. A. Parapodial gills B. Dermal branchiae C. Annuli D. Septa E. Mesenteries

parapodial gills

Adult nematomorphs are Irechving; the larvac are A. tound in benthic marine habitats B. parasitic in the respiratory systems of vertebrates. C. found in the lumon system of humans D, parasitic in arthropods. Ie. encvsted in muscle tissue of mammals.

parasitic in arthropods

the rotifer class Bdelloidea, all females are hatch into diploid females. A. Dondr B. protosyn C parthenogenetic E. mictic

parthenogenetic

The members of class leaf litter of forest floors. A. Chilopoda B. Pauropoda C. Diplopoda D. Maxillopoda E. Hexapoda

pauropoda

The body part surrounding the mouth and bearing tentacles is the A. pharynx B. head C. peristomium D. notopodium E. cirrus

peristomium

A pscudococlom lacks A peritoneum and mensenteries C. a digestive tract. E. reproductive organs.

peritoneum and mesenteries

The crustacean abdominal appendages that are used for swimming are called A. scaphopods. B. pereiopods. C. pleopods. D. maxillipeds. E. chilipeds.

pleopods

The first trunk appendages of centipedes function as A poison claws. B. walking legs. C. periopods. D. chewing mouthparts E. uropods.

poison claws

The members of the annelid class annelid condition. A. Chäetognatha B. Gnathobdellida C. Polychaeta D. Oligochaeta E. Clitellata

polychaeta

Leeches become A. negatively phototactic B. negatively thigmotactic C./negatively chemotactic D. positively phototactic E. positively thigmotactic

positively phonotactic

Chelicerates have a cephalothorax, also known as the sensation, feeding, and locomotion. A. chelicera B. prosoma C. abdomen D. opisthosoma E. carapace

prosoma

The region of the polychaete head that is dorsal and anterior to the mouth, and is sensory in function, is the A. gnathostome B. prostomium C. peristomum D. protostome E. pygidium

prostomium

animal, and for a given organ for all members of the species. B. Eutely C. Protandry D. Autotomy E, Protogyny

protogyny

esthoregulatory organs of MOST aschelminths are A. malpighian tubules. b. metancphridia .renelles. D. protonephridia. E. kidneys.

protonephrida

Reproductive females in a social insect colony are the A. drones. B. queens. C. workers. D. ogivers E. mothers.

queens

Clitellate reproduction may be characterized by A. the female picking up the spermatophore with the cloaca. B, reciprocal sperm transfer. C. hypodermic impregnation D. amplexus. E. shedding of gametes into the environment.

reciprocal sperm transfer.

Which of the following phyla contains animals that are lophotrochozoan? A. Loricifera B. Priapulida C. Nematoda D, Rotifera b. Kinorhyncha

rotifera

The nematodes are commonly known as flatworm B. segmented worms. C. roundworms. JD. beard worns. I.. tongue wonns.

round worms

The neck of a kinorbynch has spines called A. plastids. B. phasmids. C. placids. D, scalids. E. amphids.

scalids

Millipedes may be characterized as A. active predators. B. venomous. C scavengers and detritivores. D. monoecious E. viviparous.

scavengers and detritivores.

8. The arthropod skeleton hardens by ——- between protein chains. A. carbonization B. tagmatization C. calcification D. chitinization E. sclerotization

sclerotization

Every polychaete body compartment has a which aids in coordination of swimming and crawling. A. suprapharyngeal B. subpharyngeal C. segmental D. cerebral E. cephalic

segmental

Sensory receptors called pegs, bristles, and lenses. A. sensilla B. tactiles C. olfactors D. cirti B. palps

sensilla

The body cavity of most annelids is divided into compartments by "curtains" of tissue called A. cirri. B. setae. C. muscles. D. septa. E. pleura

septa

The biramous appendages of the crayfish are based on a similar ancestral pattern. This, and the sequential development of the segments makes them A. repetitively analogous B. heteronomous. metachronous. D. serially homologous. E. homonomous.

serially homologous.

Adult barnacles are unusual in lifestyle because they are A. motile. B. sessile. C. predatory. D. free-swimming. E. dioecious.

sessile

Leeches typically lack A. segments. B. a digestive tract. C. sense organs. D. a pharynx. E, setae.

setae

Acanthocephalans are commonly called A. roundworms B blood worms. C. flatworms. D. probosis oms. E, spiny-headed worms.

spiny-headed worms.

The external openings of the respiratory system of insects are A. tracheae. B. malpighil C spiracles. D. nephridiopores. E. tracheoles.

spiracles

Crustaceans have which are sensory structures to provide information regarding gravitational orientation, movement and vibrations. A. papillae C. antennules D antennae E. statocysts

statocysts

1. Specialization of regions of the body for specific functions, as seen in arthropods, is called A. tagmatization. B. metamerism. C. truncation. D. differentiation. E. cephalization.

tagmatization

Some segmented animals have groups of segments specialized for particular functions. The process of forming distinct body regions is called: A. metamerism. B. cutely. C. tagmatization. D. cephalization. E. differentiation.

tagmatization

The extinct arthropod subphylum Trilobitomorpha was named for A. the three known stages of the life cycle. B. the three known larval forms. C. the three geologic ages which were dominated by trilobites. D. the three longitudinal body divisions. E. the three species which have been identified.

the three longitudinal body divisions.

The phylum name Kinorhyncha refers to A. their bioluminescence. R their lack of spines. C. their posterior spines. D. their desenerale nervous syslemn. E. their method of burrowing.

their method of burrowing

The legs and wings of insects are attached to the A. cephalothorax B. head. C. abdomen. D. opisthosoma E. thorax.

thorax

The bacteria that cause Lyme Disease are carried and transmitted by A. black widow spiders. B. tsetse flies. C. ticks. D. mosquitoes. E. mange mites.

ticks.

Over the last several thousand years, leeches have been utilized by humans A. to attack foreign invaders. B. to remove blood from the body. C. to prevent malaria. D. as food. E. to investigate the functioning of nervous systems.

to remove blood from the body.

Various hypotheses have been proposed concerning the phylogeny of the aschelminths. Which of the following is NOT a characteristic shared by members of the phyla comprising this group? A. cuticle B. muscular pharynx C true coelom D. adhesive glands E. lack of segmentation

true coelom

Nematodes are currently placed into how many classes? B, two C. three D. four E. five

two

Crustaceans are unique among living arthropods as they possess A. chitin in their exoskeleton. B. one pair of antennae C. only two pairs of walking legs. D. a cara. E. two pairs of antennae

two pairs of antennae

The intestine —— is a dorsal invagination that increases the surface area of the earthworm A. crop B. clitellum C. esophagus D. chloragogen E. typhlosole

typholosole

The primary nitrogenous waste excreted by insects is A. urea. B. ammonia. C. urine. D. uric acid. E.guanine.

uric acid.

Many female crustaceans carry developing eggs protected by their A. pauropods. B. ogiverous legs. C. pereiopods. D. pleopods. E, uropods.

uropods

Many spiders produce. A. sticky oral secretions B. sandy pitfall traps C. oral venoms D. leaf traps E webs

webs