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True/False
Indicate whether the sentence or statement is true
or false.
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1.
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Arthropods evolved from insects.
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2.
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Arthropods may have either an open or a closed circulatory system.
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3.
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Arthropods have an exoskeleton made of chitin.
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4.
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The
bodies of arthropods are encased in a shell-like exoskeleton.
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5.
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The
outer layer of the arthropod exoskeleton is shed during molting, but products of the breakdown of the
exoskeleton inner layer are used to make a new exoskeleton.
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6.
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Most
crustaceans are aquatic.
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7.
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Crustaceans range in size from microscopic forms to huge lobsters.
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8.
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Despite the high concentrations often found in the sea, copepods play a very small
role in the ocean’s food web.
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9.
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Female spiders use silk to entrap a prospective mate as part of the mating
ritual.
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10.
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Except for the number of legs, millipedes and centipedes are basically the same in
structure and diet.
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Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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11.
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Jointed appendages of arthropods may a. | become
specialized for particular functions. | b. | function in locomotion. | c. | function in
feeding. | d. | All of the above | | |
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12.
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All
of the following are arthropods except a. | spiders. | c. | crabs. | b. | clam
worms. | d. | centipedes. | | | | |
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13.
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evolutionary origin of arthropod circulatory system : mollusks :: a. | annelid
evolution : arthropods | b. | annelid evolution : trilobite | c. | evolution of
arthropod segmentation : annelids | d. | evolution of arthropod segmentation :
mollusks | | |
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14.
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If
all copepods died, a. | bubonic plague would cease to be a
problem. | b. | predators that depend on them would quickly find substitute
food sources in the sea and fresh water. | c. | our sources of food from the ocean would
disappear. | d. | nothing would change. | | |
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15.
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Shrimps, lobsters, and crabs are examples of a. | uropods. | c. | hemipods. | b. | copepods. | d. | decapods. | | | | |
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16.
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crayfish : swimmerets for swimming and reproduction :: a. | lobsters :
uropods for reproduction | c. | crabs : telson
for eating | b. | shrimp : telson for chewing | d. | crustaceans : gills for breathing | | | | |
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17.
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Spiders, scorpions, and mites belong to the subphylum a. | Arthropoda. | c. | Chordata. | b. | Crustacea. | d. | Chelicerata. | | | | |
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18.
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Spiders, scorpions, and ticks belong to the class a. | Isoptera. | c. | Chordata. | b. | Crustacea. | d. | Arachnida. | | | | |
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19.
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Centipedes a. | have one pair of legs per segment and eat decaying
matter. | b. | have two pairs of legs per segment and are
predators. | c. | have two pairs of legs per segment and eat decaying
matter. | d. | have one pair of legs per segment and are
predators. | | |
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20.
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The
name millipede means a. | “thousand feet.” | c. | “one foot per millimeter.” | b. | “hundred
feet.” | d. | None of the
above | | | | |
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