1) One should expect to find cilia connected with the feeding device of _____.A) annelidsB) coral animalsC) tapewormsD) sponges


2) Sponges _____.A) have actually larvae which space motile and move via the movement of ciliaB) are the easiest diploblastic animalsC) have actually a nerve net but not a main nervous systemD) have feeding cells called dinoflagellates


3) i beg your pardon of the following is most likely to be aquatic?A) suspension feederB) massive feederC) deposit feederD) fluid feeder


4) Comb jellies may not be the many familiar pet to you, but they are an essential in the food chain because they consist of a significant portion that the planktonic biomass. Your feeding strategy is predatory and involves adhesives or rubber on your tentacles or various other body parts. What feeding tactic do these animals use?A) suspension feederB) fluid feederC) deposit feederD) food-mass feeder


5) i m sorry of the following can be uncovered in the mesohyl that a sponge?1. Amoebocytes2. Spicules3. Spongin4. Zygotes5. ChoanocytesA) 1 and also 2B) 2, 3, 4C) 1, 2, 3, and 4D) 1, 2, 3, 4, and 5


*

6) i m sorry of the following factors, when supplied to label the horizontal axis the the graph above, would account most directly for the form of the plot?A) price of cribrostatin synthetic (molecules/unit time)B) variety of pores every spongeC) variety of spicules every spongeD) number of choanocytes every sponge


7) many cnidarians are recognized to produce toxins. In fact, it has been declared that one particular species produces the most deadly of every toxins ~ above the planet. What feature of this team most likely progressed simultaneously through the evolution of this toxins?A) the medusa body formB) asexual reproductionC) a slow-moving or sessile way of living in the adultD) diploblastic design


8) healthy and balanced corals space brightly colored due to the fact that they _____.A) secrete colorful pigments to tempt matesB) host symbionts with colorful photosynthetic pigmentsC) construct their skeletons from vivid mineralsD) secrete colorful pigments to defend themselves native ultraviolet light


9) In regards to food capture, i beg your pardon sponge cabinet is most similar to the cnidocyte the a cnidarian?A) amoebocyteB) choanocyteC) epidermal cellD) sharp cell


10) The crown-of-thorns sea star, Acanthaster planci, preys on the flesh of live coral. If coral animals are assaulted by this sea stars, climate what actually provides nutrition come the sea star, and which chemistry (besides the toxin within their nematocysts) perform the corals depend on for protection?A) medusae; silicaB) exoskeleton; calcium carbonateC) polyps; calcium carbonateD) polyps; silica


An elementary institution science teacher decided to liven up the classroom with a saltwater aquarium. Understanding that saltwater aquaria have the right to be rather a hassle, the teacher behavior stepwise. First, the teacher conditioned the water. Next, the teacher decided to stock the tank through various naval invertebrates, consisting of a polychaete, a siliceous sponge, numerous bivalves, a shrimp, several sea anemones of different types, a colonial hydra, a couple of coral species, an ectoproct, a sea star, and also several herbivorous gastropod varieties. Lastly, she added some vertebrates—a parrotfish and also a clownfish. She i ordered it for everyday feedings of copepods and feeder fish.

You are watching: The presence of a lophophore in a newly discovered species would suggest that the species ________.

11) One day, Tommy, a student in an undersupervised course of forty 5th graders, gained the advice to pets Nemo (the clownfish), who was swimming among the waving petals of a nice underwater "flower" that had actually a big hole in the midst of the petals. Tommy giggled upon finding the these petals feel sticky. A few hours later, Tommy was in the nurse"s office through nausea and cramps. Microscopic examination of his fingers would probably have actually revealed the existence of _____.A) teeth marksB) spinesC) spiculesD) nematocysts


12) The teacher and class were particularly saddened as soon as the early american hydrozoan died. They had actually watched it carefully, and also the unfortunate creature never also got to develop offspring by budding. Yet, anyone was elated once one of the students noticed a small colonial hydrozoan farming in a component of the tank much from the ar of the original colony. The teacher was apparently unaware the these hydrozoans exhibit _____.A) voluntary generationB) abiogenesisC) alternation the generationsD) a medusa stage


13) The sharp, inch-long mandrel of the crown-of-thorns sea star room its spines. These spines, uneven those of most other sea stars, contain a potent toxin. If the were found that crown-of-thorns sea stars do not make this toxin themselves, then the many likely different would be that this toxin is _____.A) derived from the nematocysts that its preyB) took in from the bordering seawaterC) one endotoxin of cellulose-digesting bacteria the inhabit the sea star"s cradle glandsD) injected right into individual mandrel by mutualistic corals which live ~ above the aboral surfaces of these sea stars


*

14) The clownfish easily swims among the tentacles that the sea anemones; the parrotfish prevents them. One hypothesis for the clownfish"s noticeable immunity is that they slowly construct a yongin to the sea anemone"s toxin. A second hypothesis is the a chemistry in the mucus the coats the clownfish stays clear of the nematocysts from gift triggered. I m sorry of the adhering to graphs supports the second, however not the first, of this hypotheses?A) AB) BC) C D) D


15) The presence of a lophophore in a freshly discovered varieties would suggest that the species _____.A) has actually an exoskeletonB) grows by shedding its outside coveringC) is motileD) is a suspension feeder


16) You find what you think is a new species of animal. I beg your pardon of the following characteristics would enable you come argue that it is an ext closely pertained to a flatworm than it is come a roundworm?A) it is a suspension feeder.B) It has no coelom.C) it is shaped choose a worm.D) It has a mouth and an anus.


17) What would be the best anatomical feature to look because that to identify a gastropod from a chiton?A) presence of a muscular footB) existence of a rasp-like feeding structureC) manufacturing of eggsD) variety of shell plates


18) i m sorry of the adhering to organisms would certainly you expect to have actually the biggest surface-area-to-volume ratio? i think that all of the following are the same complete length.A) a molluskB) one annelidC) an arthropodD) a platyhelminth


19) against which hard structure execute the circular and also longitudinal muscle of annelids work?A) cuticleB) shellC) endoskeletonD) hydrostatic skeleton


20) when sampling naval plankton in a lab, a college student encounters huge numbers that fertilized eggs. The college student rears few of the egg in the laboratory for further study and also finds the the blastopore becomes the mouth. The embryo develops into a trochophore larva and also eventually has actually a true coelom. These eggs probably belonged come a(n) _____.A) echinodermB) molluscC) nematodeD) arthropod


*

The nontaxonomic hatchet sea slug incorporates a wide variety of naval gastropods. One function they re-superstructure as adult is the lack of a shell. We can think, therefore, that they stand for defenseless morsels because that predators. In fact, sea slugs have multiple defenses. Part sea slugs prey on sponges and also concentrate sponge toxin in your tissues. Others feed on cnidarians, digesting every little thing except the nematocysts, which lock then transport to their very own skins. Conversely, the most brightly fancy sea slug are often highly toxic, others are nontoxic and mimic the coloration that the toxic species. Your colors room mostly derived from colours in their prey. There are additionally sea slugs that use their coloration to blend right into their environments.

21) which structure perform sea slugs usage to feeding on their prey?A) nematocystsB) an incurrent siphonC) a radulaD) a mantle cavity


22) The nematocysts most most likely reach the skin of sea slugs v branches the the _____.A) intestineB) excurrent siphonC) nephridiumD) pseudocoelom


23) The nematocysts that sea slugs must be most effective at protecting individual sea slug from predation if the predators _____.A) remove little bites of meat from sea slugs and also have permanent memoryB) remove small bites of flesh from sea slugs and also have no long-term memoryC) consume whole sea slug in one gulp and also have no irreversible memoryD) consume entire sea slug in one gulp and also have irreversible memory


*

The sea cheese Pteraeolidia ianthina (P. Ianthina) have the right to harbor life dinoflagellates (photosynthetic protists) in that is skin. This endosymbiotic dinoflagellates reproduce conveniently enough to preserve their populations. Short populations perform not impact the sea slugs an extremely much, but high populations (> 5 x 105 cells/mg of sea slug protein) can promote sea cheese survival.

24) If the dinoflagellate-containing sea cheese P. Ianthina preys on coral animals, climate it would certainly be the very least surprising to uncover that _____.A) P. Ianthina has actually no yongin to the toxin in the nematocysts that its preyB) P. Ianthina can locate that coral prey by chemistry released right into the water by coralsC) the coral prey harbor dinoflagellates in your tissuesD) the coral food transform themselves into medusas to flee native approaching P. Ianthina


25) The sea cheese Elysia chorotica has actually no nematocysts or dinoflagellates but, rather, has actually "naked" chloroplasts in the skin. The chloroplasts room all that continue to be of the seaweed (Vaucheria sp.) the Elysia feeds upon. The chloroplasts room transferred come the skin; consequently, this slug is green. The spends most of the time basking in shallow water top top the surface ar of seaweeds. Just how should we mean its chloroplastic to advantage the Elysia sea slug?1. Administer Elysia with solved carbon dioxide2. Provide Elysia with fixed nitrogen3. Administer Elysia v protective colorationA) 1 onlyB) 2 onlyC) 3 onlyD) 1 and also 3


Nudibranchs, a kind of predatory sea slug, can have assorted protuberances (that is, extensions) on their dorsal surfaces. Rhinophores room paired structures, located close to the head, i m sorry bear many chemoreceptors. Dorsal plummules, usually located posteriorly, execute respiratory gas exchange. Cerata commonly cover much of the dorsal surface and also contain nematocysts at your tips.

26) Nudibranchs usually have two rhinophores. However, if they had actually a single rhinophore, it could still lug out the duty of two rhinophores, and with similar effectiveness, if this single rhinophore _____.A) had two branches, one command to the left, the other to the rightB) was situated within the mantle cavityC) was as lengthy as two rhinophores placed end to endD) had cilia whose power strokes command water far from the surface of the slug


27) A herbal predator of the crown-of-thorns sea star is a mollusc dubbed the huge Triton, Charonia tritonis. If the triton uses a radula come saw into the sea star, climate to i m sorry clade have to the triton belong?A) chitonsB) bivalvesC) gastropodsD) cephalopods


An elementary college science teacher chose to liven up the classroom v a saltwater aquarium. Knowing that saltwater aquaria can be quite a hassle, the teacher conduct stepwise. First, the teacher conditioned the water. Next, the teacher made decision to stock the tank with various maritime invertebrates, including a polychaete, a siliceous sponge, several bivalves, a shrimp, number of sea anemones of different types, a early american hydra, a few coral species, one ectoproct, a sea star, and also several herbivorous gastropod varieties. Lastly, she included some vertebrates—a parrotfish and also a clownfish. She arranged for daily feedings that copepods and also feeder fish.

28) If the teacher want to display the students what a lophophore is and also how it works, the teacher would point out a feeding _____.A) hydraB) spongeC) gastropodD) ectoproct


An elementary institution science teacher decided to liven up the classroom with a saltwater aquarium. Understanding that saltwater aquaria can be rather a hassle, the teacher conduct stepwise. First, the teacher conditioned the water. Next, the teacher decided to share the tank with various marine invertebrates, consisting of a polychaete, a siliceous sponge, number of bivalves, a shrimp, number of sea anemones of different types, a early american hydra, a few coral species, an ectoproct, a sea star, and several herbivorous gastropod varieties. Lastly, she added some vertebrates—a parrotfish and also a clownfish. She arranged for daily feedings of copepods and also feeder fish.

29) The teacher was unaware that the difference in between suspension feeding and also predation. The teacher thought that offering live copepods (2 mm long) and feeder fish (2 centimeter long) would meet the dietary needs of all of the organisms. Consequently, which 2 organisms would have actually been among the very first to starve to fatality (assuming they absence photosynthetic endosymbionts)?A) sponges and also coralsB) sea stars and spongesC) shrimp and bivalvesD) bivalves and sponges


30) What would be the many effective method of to reduce the incidence that blood flukes in a person population?A) mitigate the mosquito populationB) minimize the populace of the intermediary snail hostC) avoid contact with rodent droppingsD) very closely wash all raw fruits and vegetables


*

The sea slug Pteraeolidia ianthina (P. Ianthina) deserve to harbor living dinoflagellates (photosynthetic protists) in that skin. These endosymbiotic dinoflagellates reproduce conveniently enough to keep their populations. Low populations carry out not affect the sea slugs very much, yet high populaces (> 5 x 105 cells/mg the sea slug protein) deserve to promote sea cheese survival.

31) follow to the graph, during which season(s) the the year is the relationship between the sea slug and also its dinoflagellates closest to being commensal?A) winterB) springC) summerD) spring and also summer


32) Planarians lack devoted respiratory and circulatory systems because _____.A) nobody of their cells are much removed indigenous the gastrovascular cavity or indigenous the external environmentB) they lack mesoderm together embryos and, therefore, absence the adult tissues acquired from mesodermC) their flame bulbs can lug out respiratory and also circulatory functionsD) their body cavity, a pseudocoelom, carries out these functions


33) Which among these mollusk groups can be classified together suspension feeders?A) bivalvesB) gastropodsC) chitonsD) cephalopods


34) i beg your pardon characteristic is mutual by cnidarians and also flatworms?A) dorsoventrally planarization bodiesB) radial symmetryC) a digestive device with a single openingD) a unique head


35) If a lung to be to be found in a mollusc, wherein would it it is in located?A) mantle cavityB) incurrent siphonC) visceral massD) excurrent siphon


36) Parasitism is one of the most widespread life strategies ever before to evolve. I m sorry of the following is constant with this finding?A) Parasites nearly always predigest your hosts" tissues and, therefore, spend less energy and require under structural adaptations.B) Parasites, unequal predators, feed on virtually all the organization of your host.C) Parasites execute not typically kill your hosts; hence they deserve to feed on the same host throughout the host"s typical life span and also do not have competition from decomposers.D) Parasites generally kill your host and also can feed because that a an extremely long time because they are lot smaller than their host.


37) Nematodes and arthropods both _____.A) construct an anus indigenous the blastopore (pore) formed in the gastrula stageB) space suspension feedersC) prosper by shedding their exoskeletonD) have actually ciliated larvae


38) Arthropod exoskeletons and also mollusk shells both _____.A) totally replace the hydrostatic skeletonB) space secreted through the mantleC) help retain humidity in terrestrial habitatsD) are comprised of the polysaccharide chitin


39) You find a multi-legged animal in her garden and also want to identify if the is a centipede or a millipede. You take the pet to a college where a myriapodologist quickly tells you that you have found a centipede. I m sorry of the adhering to may have enabled her to make this distinction?A) segmentationB) gift fangsC) egg-layingD) molting


40) Whiteflies are typical pest insects uncovered on cotton, tomato, poinsettia, and many other plants. Nymphs are translucent and also mostly sessile, feeding top top their organize plants" phloem (sap) indigenous the undersides of leaves. They undergo incomplete metamorphosis right into winged adults. Because whitefly nymphs cannot escape predation through moving, friend hypothesize the their translucent bodies make them hard to spot by predators. How could you directly test this hypothesis?A) Compare prices of predation top top whitefly nymphs ~ above plant pipeline of different colors (for example, red vs. Green poinsettia leaves).B) Compare rates of predation ~ above whitefly nymphs coated with a nontoxic dye vs. Undyed whitefly nymphs.C) Compare rates of predation top top whitefly nymphs vs. Whitefly adults.D) Compare prices of predation ~ above whitefly nymphs through predators that are translucent vs. Predators that are not translucent.


41) all arthropods _____.1) undergo complete metamorphose2) have jointed appendages3) molt4) have actually segmented bodies5) have an exoskeleton or cuticleA) 1, 2, and also 4B) 3 and 5C) 2, 3, 4, 5D) 1, 4, 5


42) Look at the graph for Cormocephalus morsitans in the number above. What is the best interpretation of these results?A) The centipede had actually its spiracles open the whole time.B) The centipede had actually its spiracles close up door the entire time.C) The centipede had its spiracles open as soon as carbon dioxide (CO2) emission peaked and closed as soon as CO2 emission to be low.D) The centipede had actually its spiracles closed once carbon dioxide (CO2) emissions peaked and also open as soon as CO2 emission to be low.


43) Look in ~ the graph for Scutigerina weberi (note the range of the y-axis) in the figure above. What is the best interpretation of these results?A) The centipede had its spiracles open up the entire time.B) The centipede had actually its spiracles closeup of the door the whole time.C) The centipede had actually its spiracles open once carbon dioxide (CO2) emission peaked and also closed when CO2 emission was low.D) The centipede had its spiracles closed once carbon dioxide (CO2) emissions peaked and open when CO2 emission to be low.


44) how would a terrestrial centipede many likely benefit from the capability to near its spiracles? closing spiracles would _____.A) enable the centipede come move an ext quicklyB) allow the centipede come retain much more moisture in that tissuesC) permit the centipede to continue to be warmerD) allow an ext oxygen from the setting to with the centipede"s tissues


45) to compare the graphs in the figure over of carbon dioxide (CO2) emission for Cormocephalus morsitans and also Scutigerina weberi. What hypothesis deserve to you make about each centipede"s habitat?A) C. Morsitans stays in a habitat the provides much more carbon dioxide than does S. Weberi.B) C. Morsitans stays in a habitat with an ext predators 보다 does S. Weberi.C) C. Morsitans lives in a colder habitat 보다 does S. Weberi.D) C. Morsitans lives in a drier habitat than does S. Weberi.


46) What would certainly be the most straight effect of removed or damaging one insect"s antennae? The insect would have trouble _____.A) hearingB) matingC) seeingD) smelling


47) The heartworms that deserve to accumulate in ~ the understanding of dogs and also other mammals have actually a pseudocoelom, one alimentary canal, and also an outer covering that is periodically shed. To which phylum walk the heartworm belong?A) PlatyhelminthesB) ArthropodaC) NematodaD) Annelida


48) A terrestrial animal varieties is discovered with the complying with larval characteristics: exoskeleton, mechanism of tubes because that gas exchange, and also modified segmentation. A knowledgeable zoologist should predict the the adult of this species would also feature _____.A) eight legsB) 2 pairs of antennaeC) a sessile lifestyleD) an open up circulatory system


49) In a tide pool, a student encounters an organism with a tough outer spanning that consists of much calcium carbonate, an open up circulatory system, and also gills. The organism could potentially it is in a crab, a shrimp, a barnacle, or a bivalve. The existence of i beg your pardon of the complying with structures would enable for the most specific identification the the organism?A) a mantleB) a heartC) a human body cavityD) a filter-feeding apparatus


Nudibranchs, a type of predatory sea slug, have the right to have miscellaneous protuberances (that is, extensions) on their dorsal surfaces. Rhinophores are paired structures, located close to the head, which bear countless chemoreceptors. Dorsal plummules, usually situated posteriorly, do respiratory gas exchange. Cerata commonly cover much of the dorsal surface and also contain nematocysts at your tips.

50) The claws (fangs) ~ above the foremost trunk segment the centipedes have a role most comparable to the of _____.A) rhinophoresB) dorsal plummulesC) cerataD) chemoreceptors


51) The stingers of honeybees have a duty most comparable to that of _____.A) rhinophoresB) dorsal plummulesC) cerataD) chemoreceptors


52) The spiracles and tracheae that insects have a function most similar to that of _____.A) rhinophoresB) dorsal plummulesC) cerata.D) chemoreceptors


53) The antennae the insects have a function most similar to the of _____.A) rhinophoresB) dorsal plummulesC) cerataD) chemoreceptors


A farm pond, generally dry throughout winter, has actually plenty of water and also aquatic pond life during the summer. One summer, buy it returns to the family farm indigenous college. Observing the pond, she is fascinated by some six-legged organisms that deserve to crawl around on submerged surface or, as soon as disturbed, look at "jet" through the water. City hall further, she is able come conclude that the "mystery organisms" room ambush predators, and also their prey includes everything from insects to little fish and also tadpoles.

54) If the pond organisms space larvae, quite than adults, Sarah have to expect them to have every one of the complying with structures, other than _____.A) antennaeB) an open up circulatory systemC) one exoskeleton the chitinD) sex organs


55) sarah observed that the an enig pond organisms never ever come approximately the pond"s surface. If she catches one of this organisms and observes closely, perhaps dissecting the organism, she should discover _____.A) gillsB) spiraclesC) tracheaeD) book lungs


56) as you space walking follow me a beach, you uncover an animal and believe the it belongs to the course Asteroidea. Which of the following attributes would support your hypothesis that the pet is a sea star and not another type of echinoderm?A) that is pentaradially symmetric.B) it feeds on various other animals.C) It has actually a hydrostatic skeleton, created from its water vascular system.D) Its main region is no well-delineated native its appendages.

See more: What Did Baseball Legend Babe Ruth Keep On His Head, Under His Baseball Cap? ?


57) The water vascular system of echinoderms _____.A) attributes as a circulatory mechanism that distributes nutrient to body cellsB) attributes in locomotion and feedingC) is bilateral in organization, also though the adult pet is no bilaterally symmetricalD) is analogous to the gastrovascular cavity of flatworms


58) i m sorry of the adhering to combinations effectively matches a phylum to its description?A) Echinodermata — bilateral symmetry together a larva, water vascular systemB) Nematoda — segmented worms, closeup of the door circulatory systemC) Cnidaria — flatworms, gastrovascular cavity, acoelomateD) Platyhelminthes — radial symmetry, polyp and also medusa body forms


59) i beg your pardon of the following animal groups is completely aquatic?A) MolluscaB) CrustaceaC) EchinodermataD) Nematoda


An elementary school science teacher chose to liven increase the classroom v a saltwater aquarium. Discovering that saltwater aquaria have the right to be fairly a hassle, the teacher behavior stepwise. First, the teacher conditioned the water. Next, the teacher made decision to stock the tank through various maritime invertebrates, consisting of a polychaete, a siliceous sponge, numerous bivalves, a shrimp, several sea anemones of various types, a early american hydra, a couple of coral species, an ectoproct, a sea star, and also several herbivorous gastropod varieties. Lastly, she added some vertebrates—a parrotfish and a clownfish. She arranged for everyday feedings the copepods and also feeder fish.

60) The bivalves began to dice one by one; just the undamaged shells remained. To keep the remaining bivalves alive, the teacher would most likely need to eliminate the _____.A) sea anemonesB) sea starC) gastropodsD) ectoprocts