Biology 1402 Exam 2 (Part 2)

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  • 1/60 Questions

    The phylum that includes snails, clams, oysters, and octopuses is the 

    • Ectoprocta.
    • Brachiopoda.
    • Mollusca.
    • Annelida.
    • Phoronida.
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  • 2. 

    The mollusks include all of the following except

    • Clams.

    • Oysters.

    • Shrimps.

    • Snails.

    • Squids.

    Correct Answer
    A. Shrimps.
  • 3. 

    The rasping tongue, the radula, is present in which molluscan group?

    • Bivalve

    • Oyster

    • Clam

    • Snail

    • Scallops

    Correct Answer
    A. Snail
  • 4. 

    The nitrogenous waste in mollusks is removed by

    • Flame cells.

    • Nephridia.

    • Malpighian tubules.

    • Incurrent siphon.

    • Flagella.

    Correct Answer
    A. Nephridia.
  • 5. 

    Trochophores, the free-swimming larvae of many mollusks, are propelled through the water by

    • Flagella.

    • Cilia.

    • Flame cells.

    • Nephridia.

    • The radula.

    Correct Answer
    A. Cilia.
  • 6. 

    Radula modification allowed all of the following functions in gastropods except

    • Scraping algae off rocks.

    • Eating vegetation.

    • Boring holes in other mollusk shells.

    • Protecting themselves with nematocysts.

    • Injecting poison through a harpoon-like structure.

    Correct Answer
    A. Protecting themselves with nematocysts.
  • 7. 

    The cephalapod mollusks have

    • A muscular foot.

    • Tentacles.

    • Two siphons.

    • Setae.

    • Jointed appendages.

    Correct Answer
    A. Tentacles.
  • 8. 

    The partitions that separate the segments of the annelid body are known as

    • Pseudocoels.

    • Nephiridia.

    • Setae.

    • Septa.

    • Radula.

    Correct Answer
    A. Septa.
  • 9. 

    Annelids possess all of the following except

    • Muscles to swim, crawl, and burrow.

    • Ganglia to respond to light and respond to other environmental cues.

    • Circulatory, excretory, and neural elements in each segment.

    • Setae in each segment.

    • Adductor muscles.

    Correct Answer
    A. Adductor muscles.
  • 10. 

    The evolutionary innovation that first appeared in arthropods and is characteristic of the most successful of all animal groups is that of

    • Bilateral symmetry.

    • Coelomic body architecture.

    • Jointed appendages.

    • Segmentation.

    • Three primary types of tissues.

    Correct Answer
    A. Jointed appendages.
  • 11. 

    The excretory structures of terrestrial arthropods are slender projections from the digestive tract that are attached at the junction of the midgut and hindgut. These are called

    • Flame cells.

    • Kidneys and bladders.

    • Malpighian tubules.

    • Nephiridia.

    • Ocelli.

    Correct Answer
    A. Malpighian tubules.
  • 12. 

    Spiders are characterized by all of the following except 

    • They are particularly important as predators of insects and other small animals.

    • Many use silk webs to catch their prey.

    • Many display elaborate courtship behavior.

    • All forms are harmless to humans.

    • They live in diverse habitats on land and some even in water.

    Correct Answer
    A. All forms are harmless to humans.
  • 13. 

    The human disease, trichinosis, is contracted through

    • Walking barefoot in soil containing larvae.

    • Eating fertilized eggs.

    • Eating undercooked or raw pork.

    • Eating raw beef.

    • None of these.

    Correct Answer
    A. Eating undercooked or raw pork.
  • 14. 

    An invertebrate biologist explains to your class that she studies the choanocytes of sponges. You know that choanocytes are

    • Specialized cells near the osculum of the sponge.

    • Specialized cells that contain spongin and thus contribute to the sponge's rigid structure.

    • Specialized cells that eventually form spicules.

    • Specialized cells that have flagella and function to gather food particles.

    • Specialized cells from which larval sponges develop.

    Correct Answer
    A. Specialized cells that have flagella and function to gather food particles.
  • 15. 

    All of the following statements about Cnidaria are correct with the exception of

    • Cnidarians can have two body forms, polyp and medusa.

    • Cnidarians are triploblastic, having ectoderm, mesoderm, and endoderm.

    • Cnidarians have radical symmetry.

    • Cnidarians do not have circulatory, respiratory, or excretory systems.

    • Cnidarians have specialized cells called cnidocytes with nematocysts inside.

    Correct Answer
    A. Cnidarians are triploblastic, having ectoderm, mesoderm, and endoderm.
  • 16. 

    In mollusks, the folds of tissue that arise from the dorsal body wall and enclose a cavity surrounding the visceral mass are called the 

    • Foot.

    • Mantle.

    • Nephiridia.

    • Radula.

    • Lophophore.

    Correct Answer
    A. Mantle.
  • 17. 

    Many marine mollusks have distinctive larvae which have their bodies encircled by a row of cilia. These larvae are called 

    • Panulae.

    • Polyps.

    • Miracidia.

    • Zoecia.

    • Tochophores.

    Correct Answer
    A. Tochophores.
  • 18. 

    Mollusks have all of the following except

    • Visceral mass covered with a soft epithelium.

    • Folds enclosing a cavity between themselves and the visceral mass.

    • Gills or lungs within the mantle.

    • Individuals secrete a tiny chitinous chamber, zoecium.

    • The shell consists of a horny outer layer, which is rich in protein.

    Correct Answer
    A. Individuals secrete a tiny chitinous chamber, zoecium.
  • 19. 

    Which of the following organs of cephalopods resemble those of the vertebrates?

    • Arms

    • Nephridia

    • Eyes

    • Digestive tissues

    • Foot

    Correct Answer
    A. Eyes
  • 20. 

    Each segment of an annelid typically contains bristles of chitin called

    • Cilia.

    • Parapodia.

    • Chaetae.

    • Leglets.

    • Setae.

    Correct Answer
    A. Setae.
  • 21. 

    The sexual reproduction of earthworms characteristically is

    • Hermaphroditic but cross-fertilizing.

    • Hermaphroditic but self-fertilizing.

    • Normal type between individuals who remain as males and females throughout their life time.

    • Normal appearing, but individuals change sex periodically.

    • Normal appearing, but individuals reproduce only once in their lives.

    Correct Answer
    A. Hermaphroditic but cross-fertilizing.
  • 22. 

    Earthworms show all of the following features except

    • Containing segments with a mouth on the first and the anus on the last.

    • Containing touch-sensitive and light-sensitive organs in the segments.

    • Containing fewer setae than in polychaetes.

    • Containing distinct head regions and parapodia.

    • Being hermaphroditic.

    Correct Answer
    A. Containing distinct head regions and parapodia.
  • 23. 

    A biologist has been studying a mollusk that does not have a shell. It lives in the marine environment. Of the examples given below, which one did the biologist study?

    • Clam

    • Snail

    • Garden slug

    • Chiton

    • Octopus

    Correct Answer
    A. Octopus
  • 24. 

    The most successful class of arthropods is

    • Insecta.

    • Arachnida.

    • Crustacea.

    • Chilopoda.

    • Merostomata.

    Correct Answer
    A. Insecta.
  • 25. 

    The passage of an arthropod through stages from egg to adult is

    • Differentiation.

    • Evolution.

    • Graduation.

    • Metamorphosis.

    • Succession.

    Correct Answer
    A. Metamorphosis.
  • 26. 

    Nauplius, a unique kind of larva, is characteristic of

    • Mites.

    • Crustaceans.

    • Horseshoe crabs.

    • Insects.

    • Chelicerates.

    Correct Answer
    A. Crustaceans.
  • 27. 

    1. Chelicerae function as  A. eyes. B. fangs or pincers. C. jaws or mandibles. D. teeth.
    E. wings.    

    • Eyes.

    • Fangs or pincers.

    • Jaws or mandibles.

    • Teeth.

    • Wings.

    Correct Answer
    A. Fangs or pincers.
  • 28. 

    Which of the following is not true about crustaceans?

    • They produce larvae known as nauplius.

    • They have legs on their abdomen and thorax.

    • They have two pairs of antennae.

    • Many have compound eyes.

    • They have covers called the opercula, posterior to the legs.

    Correct Answer
    A. They have covers called the opercula, posterior to the legs.
  • 29. 

    An invertebrate biologist is conducting research with crabs. Her interest is ecdysis. This implies that she studies

    • Tagmatization processes in crustaceans.

    • How ommatidia function individually in a compound eye.

    • How the HOX gene controls the fusion of the head and thorax into the cephalothorax.

    • How ocelli evolved from mere photoreceptors to imaging lens.

    • The molting process

    Correct Answer
    A. The molting process
  • 30. 

    The three phyla, Ectoprocta, Brachiopoda, and Phoronida, have which feature in common? 

    • Nephiridia

    • A lophophore

    • A radula

    • Setae

    • A muscular foot

    Correct Answer
    A. A lophophore
  • 31. 

    Eyes with single lenses that respond to light and darkness are found in many arthropods; these are the

    • Compound eyes.

    • Ocelli.

    • Apposition eyes.

    • Ommatidia.

    • Superpostion segments.

    Correct Answer
    A. Ocelli.
  • 32. 

    Air passage into the trachea of most insects is controlled by the closing and opening of valves, which operate special openings called

    • Spiracles.

    • Ocelli.

    • Ommatidia.

    • Book lungs.

    • Malpighian tubules.

    Correct Answer
    A. Spiracles.
  • 33. 

    The class Arachnida includes all of the following except

    • Dragon flies.

    • Mites.

    • Scorpions.

    • Spiders.

    • Ticks.

    Correct Answer
    A. Dragon flies.
  • 34. 

    These echinoderms have soft, slug-like bodies with tough, leathery skin. They are the

    • Sea pansies.

    • Sea lillies.

    • Sea daisies.

    • Sea cucumbers.

    • Sea anemones.

    Correct Answer
    A. Sea cucumbers.
  • 35. 

    Which of the following are not correctly matched?

    • Spicules—sponges

    • Nematocyst—cnidaria

    • Flame cells—flatworms

    • Stylets—roundworms

    • Scolex—rotifers

    Correct Answer
    A. Scolex—rotifers
  • 36. 

    The organ that is responsible for secreting cocoons in the oligochaetes is known as the 

    • Nephridia.

    • Setae.

    • Radula.

    • Clitellum.

    • Lophophore.

    Correct Answer
    A. Clitellum.
  • 37. 

    The functions of the lophophore include all of the following except as a 

    • Surface for gas exchange.

    • Food-collecting organ.

    • Means of attachment to the substrate. means of attachment to the substrate.

    • Rasping tongue.

    • Location for the tentacles and the anus.

    Correct Answer
    A. Rasping tongue.
  • 38. 

    Examples of mollusks that live on land are the

    • Earthworms.

    • Land crabs.

    • Mussels.

    • Scorpions.

    • Snails and slugs.

    Correct Answer
    A. Snails and slugs.
  • 39. 

    Which of the following are not found in a bivalve?

    • Tentacle, radula, and distinctive head

    • Large wedge-shaped foot

    • Mantle enveloping the internal organs

    • Two large adductor muscles

    • Complex gills

    Correct Answer
    A. Tentacle, radula, and distinctive head
  • 40. 

    The medicinal leech, once used to withdraw "unhealthy" blood from patients, produces which of the following to ensure blood flow from the host?

    • Antibiotics

    • Antibodies

    • Anticoagulant

    • Blood clots

    • Suture material

    Correct Answer
    A. Anticoagulant
  • 41. 

    All of the following are either structures or characteristics of members of the Class Bivalvia of the Phylum Mollusca except

    • The mantle.

    • A radula.

    • A shell.

    • Gills.

    • Open circulation.

    Correct Answer
    A. A radula.
  • 42. 

    Select the mismatched pair of Phylum Mollusca classes and their examples.

    • Polyplacophora—chitons

    • Gastropoda—slugs

    • Bivalvia—snails

    • Cephalopoda—nautilus

    • Gastropoda—nudibranchs

    Correct Answer
    A. Bivalvia—snails
  • 43. 

    Reproduction in the earthworm involves

    • Asexual budding.

    • Self-fertilization.

    • Cross-fertilization between two dioecious organisms.

    • Cross-fertilization between two hermaphroditic organisms.

    • Recombination between opposite mating types.

    Correct Answer
    A. Cross-fertilization between two hermaphroditic organisms.
  • 44. 

    A marine biologist is conducting research on animals that have a lophophore and two calcified shells. Based on this information, this animal this must belong to the phylum

    • Mollusca.

    • Phoronida.

    • Ectoprocta.

    • Bryopoda.

    • Brachiopoda.

    Correct Answer
    A. Brachiopoda.
  • 45. 

    Which class of arthropods contains members with two pairs of antennae and legs on their abdomen and thorax?

    • Insecta

    • Arachnida

    • Crustacea

    • Chilopoda

    • Merostomata

    Correct Answer
    A. Crustacea
  • 46. 

    In some arthropods tagmatization has produced a combination of head and thorax known as a

    • Cephalothorax.

    • Fused corpora.

    • Headless mite.

    • Larval instar.

    • Thoracotomy.

    Correct Answer
    A. Cephalothorax.
  • 47. 

    Spiders and certain other arthropods which lack jaws or mandibles are placed in a subphylum called

    • Agnathae.

    • Amandibulata.

    • Blood suckers.

    • Chelicerates.

    • Mandibulates.

    Correct Answer
    A. Chelicerates.
  • 48. 

    Oxygen diffuses to the tissues of terrestrial arthropods through the

    • Arteries.

    • Cells of the cortex.

    • Circulatory system.

    • Lungs.

    • Trachea and tracheoles.

    Correct Answer
    A. Trachea and tracheoles.
  • 49. 

    Decapod crustaceans (shrimps, lobsters, and crabs) are characterized by all of the following except

    • A carapace, a dorsal cephalothorax shield.

    • A ventral line of appendages, swimmerets.

    • Flattened uropods form a paddle at the end of the abdomen.

    • A tail spine, telson.

    • Chelicerae.

    Correct Answer
    A. Chelicerae.

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  • Mar 21, 2022
    Quiz Edited by
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  • Oct 14, 2012
    Quiz Created by
    Vlgarza08

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