Chapter 34 – Protostomes
40. The nitrogenous waste in mollusks is removed by
41. Trochophores, the free-swimming larvae of many mollusks, are propelled through the
water by
42. Radula modification allowed all of the following functions in gastropods except
Chapter 34 – Protostomes
43. The cephalopod mollusks have
44. Which of the following organs of cephalopods resemble those of the vertebrates?
45. The partitions that separate the segments of the annelid body are known as
Chapter 34 – Protostomes
46. Annelids possess all of the following except
47. Each segment of an annelid typically contains bristles of chitin called
48. The sexual reproduction of earthworms characteristically is
Chapter 34 – Protostomes
49. Earthworms show all of the following features except
50. The medicinal leech, once used to withdraw “unhealthy” blood from patients, produces
____________ to ensure blood flow from the host?
51. 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?
Chapter 34 – Protostomes
52. All of the following are either structures or characteristics of members of the Class
Bivalvia of the Phylum Mollusca except
53. Select the mismatched pair of Phylum Mollusca classes and their examples.
54. You and your biology lab class take a field trip to a marine aquarium. Your guide is a
marine biologist who studies squids. She explains to your class how squids are able to blend
into their environment. She points out that squids have pouches of pigments embedded in
their epithelium. The pouches are called
Chapter 34 – Protostomes
55. A marine biologist is conducting research on animals that have a lophophore and two
calcified shells. Based on this information, this animal must belong to the phylum
56. A marine biologist visits your biology class and begins his talk entitled, “Life as a
Trochophore.” A friend seated next to you asks, “What is a trochophore?” You explain that a
trochophore is
57. The evolutionary innovation that first appeared in arthropods and is characteristic of the
most successful of all animal groups is that of
Chapter 34 – Protostomes
58. In terms of the number of species, the most successful class of arthropods is
59. In some arthropods tagmatization has produced a combination of head and thorax known
as a
60. The passage of an arthropod through stages from egg to adult is
Chapter 34 – Protostomes
61. Spiders and certain other arthropods which lack jaws or mandibles are placed in a
subphylum called
62. Nauplius, a unique kind of larva, is characteristic of
63. In arthropods, locomotion is accomplished by muscles that work against
Chapter 34 – Protostomes
64. The rigid chitinous exoskeleton of an arthropod has all of the following functions except
it
65. Compound eyes are composed of independent visual units called
66. Eyes with single lenses that respond to light and darkness are found in many arthropods;
these are the
Chapter 34 – Protostomes
67. Air passage into the trachea of most insects is controlled by the closing and opening of
valves, which operate special openings called
68. 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
69. Chelicerae function as
Chapter 34 – Protostomes
70. Decapod crustaceans (shrimps, lobsters, and crabs) all lack
71. An invertebrate biologist is conducting research with crabs. Her interest is ecdysis. This
implies that she studies
72. A marine biologist makes a presentation about crustaceans to your biology class. He
explains that he has recently received an NSF grant to study sessile crustaceans. You are only
aware of one group of sessile crustaceans. This crustacean must be
Check All That Apply Questions
Chapter 34 – Protostomes
73. A spider and an insect are both arthropods, but they have some different characteristics.
Choose the descriptions that are true for BOTH a spider and an insect. Check all that apply.
Clarify Question
•
What is the key concept addressed by the question?
• What type of thinking is required?
Gather Content
•
What do you already know about arthropods?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 34 – Protostomes
Multiple Choice Questions
74. Which one of the following incorrectly matches a molluscan structure with its typical
function?
75. Which one of the following incorrectly matches a molluscan group with a feature
characterizing that group?
Chapter 34 – Protostomes
76. Which one of the following annelid structures or events is not correctly paired with its
role in locomotion?
77. Which one of the following statements about the phylum Brachiopoda is false?
78. Which one of the following insect organ systems has placed the greatest limitation on
their body size?
Chapter 34 – Protostomes
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
Gather Content
•
What do you already know about insects?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 34 – Protostomes
79. How does a ribbon worm differ from a flatworm?
True / False Questions
80. The side to side thrashing of a nematode is accomplished by contraction of its circular
muscles.