Invertebrate Practice Test

59 Questions

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Biology Quizzes & Trivia

Without our backbones, our bodies would crumble to the ground like a house of cards. They provide us with frame and structure so that the activities we undertake daily can even be done. So, what about animals that don’t have this same support? How do animals without a bony skeleton stay upright and move about? Take this quiz on invertebrates to find out!


Questions and Answers
  • 1. 
    What type of body plan to sponges have?
    • A. 

      Asymmetrical

    • B. 

      Bilateral

    • C. 

      Radial

  • 2. 
    What type of digestive system to sponges have?
    • A. 

      2 way: in through mouth, out through anus

    • B. 

      1 way: in through mouth, out through anus

    • C. 

      2 way: in through mouth, out through mouth

  • 3. 
    Sponges lack:
    • A. 

      Bones, specific body plan, and flagella

    • B. 

      Organs, specific body plan, and tissue

    • C. 

      Organs, specific body plan, and teeth

  • 4. 
    • A. 

      Sexually and asexually

    • B. 

      Just by budding

    • C. 

      Just sexually

  • 5. 
    Sponges exchange gas through?
    • A. 

      Diffusion

    • B. 

      Breathing

    • C. 

      Spicules

  • 6. 
    • A. 

      Collar cells

    • B. 

      Diffusion

    • C. 

      Amoebocytes

  • 7. 
    Definition of collar cells:
    • A. 

      Whip like flagella that power the pump

    • B. 

      Pick up food from collar cells

    • C. 

      Help with reproduction

  • 8. 
    Spicules help the sponge by:
    • A. 

      Helping to identify the type of sponge, gives it form, makes it rigid

    • B. 

      Helping to identify the collar cells, makes it rigid

    • C. 

      Makes it rigid

  • 9. 
    Definition of amoebocytes:
    • A. 

      Pick up food from the collar cells, digest it, give out nutrients to other cells, and transport oxygen

    • B. 

      Transport oxygen

    • C. 

      Gives it form, helps dispose of wastes, distributes nutrients, power the pump, participate in reproduction

  • 10. 
    First animals to have sensitive tentacles?
    • A. 

      Cephalopods

    • B. 

      Crustaceans

    • C. 

      Arthropods

    • D. 

      Cnidarians

  • 11. 
    • A. 

      Cnidarians

    • B. 

      Gastropods

    • C. 

      Platyhelmenthis

  • 12. 
    First group to have a head/brain?
    • A. 

      Bivalves

    • B. 

      Flatworms

    • C. 

      Roundworms

  • 13. 
    Cnidarians have what 2 types of body form?
    • A. 

      Medusa body form, polyp

    • B. 

      Medusa body form, asymmetrical

    • C. 

      Radial

  • 14. 
    Cnidarians what type of body plan?
    • A. 

      Asymmetrical

    • B. 

      Radial

    • C. 

      Bilateral

  • 15. 
    Cnidarians reproduce:
    • A. 

      Sexually and asexually

    • B. 

      Sexually

    • C. 

      Asexually

  • 16. 
    Describe nematocytes:
    • A. 

      They are the stinging cells which stuns a prey

    • B. 

      They chill on the beach

    • C. 

      They are the actual tentacle which darts out to sting a prey

  • 17. 
    The digestive system of a Cnidarian?
    • A. 

      2 way

    • B. 

      1 way

  • 18. 
    Types of Cnidarians:
    • A. 

      Hydra, portugese man-of-war, sea urchin

    • B. 

      Hydra, portugese man-of war, sea anemones, jellyfish

    • C. 

      Jellyfish, sea anemones, octopi, and squids

  • 19. 
    Cnidarian brain:
    • A. 

      Similar to the human brain

    • B. 

      Nerve net (cluster of nerves)

  • 20. 
    Cnidarians exchange gas through:
    • A. 

      Diffusion

    • B. 

      Water vascular system

    • C. 

      Gills

    • D. 

      Lungs

  • 21. 
    What type of body plan to flatworms/roundworms have?
    • A. 

      Asymmetrical

    • B. 

      Radial

    • C. 

      Bilateral

  • 22. 
    What are Flatworms?
    • A. 

      Acoelomates

    • B. 

      Pseudocoelomate

    • C. 

      Coelomates

  • 23. 
    Flatworms are the first. . .
    • A. 

      Things to have legs

    • B. 

      Things to have eyes

    • C. 

      Mobile hunters

  • 24. 
    • A. 

      2 way

    • B. 

      1 way

  • 25. 
    How do flatworms reproduce?
    • A. 

      Sexually

    • B. 

      Asexually

    • C. 

      Both

  • 26. 
    • A. 

      2 way

    • B. 

      1 way

  • 27. 
    Examples of a flatworm are?
    • A. 

      Tapeworms, segmented worms

    • B. 

      Tapeworms, flukes

    • C. 

      Hookworm, pinworm

  • 28. 
    Examples of a roundworm are?
    • A. 

      Hookworm, pinworm, threadworm

    • B. 

      Tapeworms, flukes, segmented worms

    • C. 

      Scaleworm, leech, featherduster worm

  • 29. 
    Overall body structure of both roundworms and flatworms?
    • A. 

      5 part body plan

    • B. 

      Segmented bodies

    • C. 

      3 tissue layers

  • 30. 
    What is a roundworm?
    • A. 

      Acoelomate

    • B. 

      Pseudocoelomate

    • C. 

      Coelomate

  • 31. 
    • A. 

      Sexually

    • B. 

      Asexually

    • C. 

      Both

  • 32. 
    Gas exchange for roundworms?
    • A. 

      Diffusion

    • B. 

      Lungs

    • C. 

      Gills

  • 33. 
    Examples of annelids?
    • A. 

      Scale worm, leech, featherduster, spagetti worm

    • B. 

      Scale worm, leach, featherduster, acoelomate

  • 34. 
    Annelid body plan?
    • A. 

      Asymmetrical

    • B. 

      Radial

    • C. 

      Bilateral

  • 35. 
    What are annelids?
    • A. 

      Acoelomates

    • B. 

      Pseudocoelomates

    • C. 

      Coelomates

  • 36. 
    First group to have a closed circulatory system?
    • A. 

      Flatworms

    • B. 

      Roundworms

    • C. 

      Annelids

    • D. 

      Arthropods

  • 37. 
    Annelid Reproduction:
    • A. 

      Sexually

    • B. 

      Asexually

    • C. 

      Both

    • D. 

      Sexual and hermaphroditic

  • 38. 
    • A. 

      2 way

    • B. 

      1 way

  • 39. 
    Excretion of annelids:
    • A. 

      In through the mouth and out through the anus

    • B. 

      In and out through the mouth

  • 40. 
    Gas exchange for Annelids?
    • A. 

      Diffusion

    • B. 

      Breathing

    • C. 

      Gills

  • 41. 
    Examples of bivalves:
    • A. 

      Scallops, clams, muscle, oysters

    • B. 

      Octopi, squid

    • C. 

      Snail, slugs

  • 42. 
    5 main parts of a bivalve:
    • A. 

      Head, foot, stomach, anus

    • B. 

      Gills, mouth, foot, anchoring, coelom

    • C. 

      Mantle, foot, vascular cavity, foot, coelom

  • 43. 
    Definition of a mantle:
    • A. 

      Helps with respiration, waste disposal, digging, anchoring

    • B. 

      Helps with respiration, waste disposal, sensory reception, and houses organs

  • 44. 
    Digestion for bivalves:
    • A. 

      2 way (filter feeders)

    • B. 

      1 way (filter feeders)

  • 45. 
    gas exchange for bivalves:
    • A. 

      Gills

    • B. 

      Mouth

    • C. 

      Lungs

  • 46. 
    type of reproduction (both male and female structures are present in the same individual)
    • A. 

      Sexually

    • B. 

      Asexually

    • C. 

      Both

  • 47. 
    Examples of gastropods:
    • A. 

      Snails, slugs, leafy horn mouth, leek

    • B. 

      Snails, slugs, leafy horn mouth, moon snail

  • 48. 
    4 main body parts of a gastropod:
    • A. 

      Foot, stomach, radula, eyes

    • B. 

      Head, eyes, ears, mouth

    • C. 

      Head, foot, mantle, radula

  • 49. 
    • A. 

      True

    • B. 

      False

  • 50. 
    Gastropods have a 2 way digestive system.
    • A. 

      True

    • B. 

      False

  • 51. 
    Gastropod reproduction:
    • A. 

      Sexually

    • B. 

      Asexually

    • C. 

      Both

  • 52. 
    Definition of a radula:
    • A. 

      Mouth used to suck in food

    • B. 

      Tongue used to eat prey

  • 53. 
    • A. 

      True

    • B. 

      False

  • 54. 
    Cephalopods reproduction:
    • A. 

      Sexually

    • B. 

      Asexually

    • C. 

      Both

  • 55. 
    Characteristics of an octopus:
    • A. 

      Lives on the bottom of the ocean

    • B. 

      Hunts when its light outside

    • C. 

      Change colors

    • D. 

      Has 8 tentacles

  • 56. 
    digestion for a cephalopod:
    • A. 

      2 way

    • B. 

      1 way

  • 57. 
    Cephalopods reproduce both sexually and asexually.
    • A. 

      True

    • B. 

      False

  • 58. 
    gas exchange for cephalopods:
    • A. 

      Gills

    • B. 

      Breathing

    • C. 

      Mouth

  • 59. 
    • A. 

      Lives only on the ocean floor

    • B. 

      Uses natural law forces to move

    • C. 

      Stores sea water inside its shell

    • D. 

      It has a vertically clamping mouth with a radula