Biol 11
Ch 28 TEST: Arthropods
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1. The centipedes and millipedes are in the same subphylum as
a. insects
b. horseshoe crabs
c. spiders
d. shrimp
2. The waterproof exoskeleton of most arthropods is composed of
a. limestone b. bony plates
c. chitin
d. calcium carbonate
3. The chelicerate that has five pairs of walking legs and a long spike-like tail is the
a. mite
b. scorpion
c. horseshoe crabs
d. tick
4. Each of the following is an important characteristic of all arthropods except
a. tough skeleton
c. jointed appendages
b. book lungs
d. a segmented body
5. Tracheal tubes in arthropods are connected to openings on their body surface
called
a. sinuses
b. gills
c. spinnerets
d. spiracles
e. Malpighian tubules
6. Terrestrial arthropods dispose of nitrogenous wastes through the use of
a. gills
b. Malpighian tubules
c. green glands
d. spiracles
e. sinuses
7. If an arthropod lacks antennae, it is in the subphylum
a. Crustacea b. Uniramia c. Trilobita
d. Chelicerata
8. Unlike a closed circulatory system, an open circulatory system involves
a. sinuses
b. a heart
c. blood vessels
d. internal transport
9. Each of the following is true in a bee colony except that
a. there is a single queen
b. reproductive males become workers after mating
c. the queen mates only once or twice
d. the workers care for the colony
10. In incomplete metamorphosis, the insect that hatches from an egg
a. is a zygote
d. is an adult
b. is a larva
e. is a nymph
c. is a pupa
11. In crustaceans and insects, the chemical receptors associated with smell and taste
are located on the mouthparts and the
a. bristles and compound eyes
c. antennae and legs
b. eardrums and gills
d. carapace and swimmerets
12. A bee indicates it has found food within 50 meters of the hive by
a. producing queen substances
d. a waggle dance
b. producing pheromones
e. producing honey
c. a round dance
Biol 11
Ch 28 TEST: Arthropods
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13. An insect does not have
a. a cephalothorax
c. one pair of antennae
b. two pairs of wings
d. three pairs of mouthparts
14. Millipedes, unlike centipedes, have
a. closable spiracles
c. one pair of legs per segment
b. a waterproof coating
d. two pairs of legs per segment
15. Arthropods that match the color and texture of their surroundings so closely that
they seem to disappear are demonstrating
a. regeneration
b. metamorphosis
c. mimicry
d. camouflage
16. The first of these processes to occur in the molting of an arthropod is the
a. formation of a new exoskeleton inside the old one
b. hardening of the new exoskeleton
c. production of molting hormone
d. digestion of the inner part of the exoskeleton
e. production of juvenile hormone
17. In complete metamorphosis, a full grown adult emerges from the
a. egg
b. pupa
c. gonads
d. larva
e. zygote
18. If an animal has one pair of antennae and unbranched appendages, it
a. must be a uniramian
c. may be a crustacean
b. must be an insect
d. may be a chelicerate
19. Which of these is an arachnid?
a. scorpion
b. horseshoe crab
c. grasshopper
d. lobster
20. In the chelicerates, the second pair of mouthparts are the
a. mandibles
b. pedipalps c. poison glands
d. chelicerae e. antennae
21. The insects are in the same subphylum as the
a. lobsters
b. scorpions
c. horseshoe crabs
d. centipedes
22. Insects that imitate the warning coloration of poisonous or dangerous species are
using
a. regeneration
b. camouflage c. metamorphosis d. mimicry
e. fragmentation
23. In crustaceans, the third pair of appendages, which are used for feeding, are the
a. chelicerae
b. pedipalps c. mandibles d. antennae e. poison gland
24. An adult arachnid does not have
a. five pairs of walking legs
b. a cephalothorax
c. chelicerae adapted for biting
d. pedipalps adapted for capturing prey.
Biol 11
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Ch 28 TEST: Arthropods
25. Lobsters empty their nitrogenous wastes
a. through the spiracles
b. with the solid waste out the anus
c. through an opening under the swimmerets on their abdomen
d. out an opening at the base of the antennae on its head
26. A free-living arthropod is certain to have
a. antennae
b. chelicerae
c. jointed appendages
d. gills
27. Insects are characterized by
a. a stony exoskeleton containing calcium carbonate
b. chelicerae and pedipalps
c. three pairs of legs on the thorax
d. many body segments, each of which bears two pairs of legs
28. In crustaceans, nitrogenous wastes are excreted with the help of
a. green glands
b. spiracles
c. Malpighian tubules
d. pheromones
29. Among crustaceans, appendages on the thorax or abdomen are used for each of
the following EXCEPT:
a. filter feeding
b. swimming c. sucking blood
d. carrying eggs
30. Some usual placements of sensory organs in arthropods include:
a. eyes on their antennae
b. eardrums on their legs
c. chemoreceptors (for tasting)on their legs
d. all of the above
e. both (b) and (c)
31. Most spiders breathe using
a. mandibles
b. malpighian tubules
c. book lungs
d. tracheal tubes
e. both (c) and (d)
32. Which is most likely to be a herbivore
a. spider
b. centipede
c. tick
33. Trilobites
a. are primarily terrestrial
b. have highly specialized appendages
d. millipede
c. are extinct
d. communicate by “dancing”
34. What stage is an insect in if its levels of juvenile hormone are high?
a. egg
b. juvenile
c. larval
d. pupal
e. adult
35. What body part do spiders use to inject venom into its prey?
a. mandibles
b. chelicerae c. pedipalps d. modified antennae e. probiscus
Biol 11
Ch 28 TEST: Arthropods
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36. Horseshoe crabs are part of which classification group?
a. crustaceans
b. uniramians
c. insects
d. chelicerates e. trilobites
37. It is difficult to swat a fly while it is flying because:
a. its compound eyes are very good at detecting motion
b. its sensory hairs on its legs are able to detect movement in the air
c. flies are excellent flyers, being able to hover, change direction rapidly and
move away very quickly
d. flies are able to smell you approaching are ready for your attack
e. (a), (b), and (c) are all true
38. A wormlike immature animal undergoes a resting stage during which it changes
into an adult that has four wings and six legs. This animal is a (an)
a. crustacean
b. insect
c. chelicerate
d. trilobite
e. arachnid
39. The exoskeleton of Crustaceans is particularly hard because
a. it is made of chitin
b. it has less molting hormone in it
c. it has calcium carbonate added to it
d. it has an extra covering of mother-of-pearl (as in inside of oysters)
e. the exoskeleton of Crustaceans is only as hard as in any of the arthropods
40. Which of the following words does NOT belong with the others?
a. green glands b. nephridia c. Malpigian tubules d. kidneys
e. spiracles
41. The nervous systems of most arthropods do not include
a. a brain
c. nerves around the esophagus
b. a dorsal nerve cord
d. numerous ganglia
42. Insects have accumulated the following adaptations for flying EXCEPT:
a. they have thin exoskeletons to minimize their body weight
b. their thorax is almost completely filled with muscles for flight
c. they have oversized mitochondria to supply energy for the flight muscles
d. they have a special blood supply that conserves the heat created from the
flight muscles
43. When the production of juvenile hormone ceases in metamorphosis, the molting
insect
a. becomes an adult
c. becomes a pupa
b. remains a larva
d. produces molting hormone
44. An evolutionary trend of living arthropods away from trilobites is
a. fewer body segments
c. more featherlike gills
b. less-specialized appendages d. thicker, tougher body coverings
Biol 11
Ch 28 TEST: Arthropods
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45. All of the following are characteristics of the queen bee EXCEPT:
a. she is much larger than all of the other bees
b. she secretes a pheromone that prevents any other female from developing
into a queen
c. she has an oversized abdomen for producing eggs
d. she has many different mates to increase the variation within the colony
e. she was fed a special diet which enabled her to develop into a queen
46. Compound eyes
a. are able to detect the presence or absence of light only
b. do not form a very detailed image
c. create images that are, in some cases, better than our own
d. create a detailed image in black and white
e. are able to detect movement, but do not form images
47. A unique feature of the Malpighian tubules in some arthropods is
a. they dispose of solid wastes
b. they collect nitrogenous waste and add it to the solid waste for disposal
c. they collect excess water so the cells do not lyse
d. they create a pathway for the blood to return to the heart from the sinuses
e. they secrete the chitin required when a new exoskeleton is needed
48. Honeybees have special adaptations including all of the following except:
a. they have hairy legs for collecting pollen
b. they warn other bees with sounds by rubbing their back legs together
c. they secrete wax from glands on their abdomen to produce honeycombs
d. they have a chemical in their saliva that changes flower nectar into honey
e. they are able to communicate with each other using routine movements
49. Tracheal tubes are able to supply oxygen to the body cells by
a. shrinking and contracting due to muscle movement
b. employing an arrangement of tubes that use air currents for circulation
c. allowing the wind created from the wings to move through the body
during flight
d. layering the tubes inside the thoracic cavity to increase the surface area
available for absorption
e. none of these are correct
50. The velvet worm is interesting to evolutionists because:
a. it has a larva that is very similar to a centipede
b. it has jointed appendages very similar to modern arthropods
c. it has characteristics that seem to be half annelid, half arthropod
d. it have social behaviours that are very similar to those found in ant
colonies
e. it will metamorphose into an arthropod, suggesting that it is a larval stage,
but it only does this under very specific, rarely found conditions.
Biol 11
Ch 28 TEST: Arthropods
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Part B: Short answer questions:
45 marks total
1. Why are insects restricted to relatively small sizes? (1 mark)
2. If one bee finds a jam sandwich, you can count on having many bees come into
the area in a shortly after, even if there is no bee hive within 50 meters. Explain
the communication system that the first bee would use to alert the others on how
to find the sandwich. (2 marks)
3. Explain how complete metamorphosis is different from incomplete
metamorphosis. (2 marks)
4. Describe how the organs of respiration in arachnids differ from the organs of
respiration in crustaceans and in insects. (2 marks each system; 6 marks total)
5. Insects are still able to walk, or even fly for awhile after they have had their head
cut off. How/why are they able to do this? (2 marks)
6. In the past, many insect larvae were improperly classified as organisms not even
remotely related to the adult. Why might this have happened? (2 marks)
7. What does the process of insect metamorphosis reveal about insect evolution? (1
mark)
8. a. Why do arthropods need to shed their skin? (1 mark)
b. Why are they particularly vulnerable right after shedding? (1 mark)
9. a. Many insect larvae live in moist soil much like earthworms. Suggest a reason
why this might be necessary. (1 mark)
b. In some cases, the adult stage of the above larva will be flying insects that exist
in the dry air. What adaptations do these adult insects have in order to live in a
dry, terrestrial environment? (2 marks)
10. Insects are ectodermic (cold-blooded) animals. This means that they must use the
temperature of the environment to keep themselves warm and active. However,
bees are able to keep their body temperature up even when it is cold outside. How
are they able to do this? (2 marks)
11. Label the diagram of the grasshopper. ( ½ mark each – 7 total)
Biol 11
Ch 28 TEST: Arthropods
12. Label the diagram of the crayfish. ( ½ mark each: 7 total)
13. Label the diagram of the internal structures of a spider. ( ½ mark each: 8 total)
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