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1 | |
All of the following are characteristics of members of the phylum Arthropoda except one. Select the exception. |
| | A) | metamerism modified by tagmatization |
| | B) | dorsal nervous system |
| | C) | chitinous exoskeleton provides support and protection |
| | D) | open circulatory system in which blood is released into tissue spaces derived from the blastocoel |
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2 | |
All of the following are protostomate phyla except one. Select the exception. |
| | A) | Mollusca |
| | B) | Platyhelminthes |
| | C) | Arthropoda |
| | D) | Echinodermata |
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3 | |
The outermost waxy layer of the arthropod exoskeleton is called the |
| | A) | epicuticle. |
| | B) | procuticle. |
| | C) | hypodermis. |
| | D) | basement membrane. |
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4 | |
A layer of cells that secretes the arthropod exoskeleton is called the |
| | A) | epicuticle. |
| | B) | procuticle. |
| | C) | hypodermis. |
| | D) | basement membrane. |
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5 | |
In the region of a joint, the ______ of the exoskeleton is less hardened and forms an articular membrane. In other parts of the exoskeleton this region is hardened and inflexible. |
| | A) | epicuticle |
| | B) | procuticle |
| | C) | epidermis |
| | D) | hypodermis |
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6 | |
Biramous appendages are present in, or were present in |
| | A) | all arthropods. |
| | B) | Crustacea and Insecta. |
| | C) | Crustacea and Trilobitomorpha. |
| | D) | Trilobitomorpha and Arachnida. |
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7 | |
The sensory, feeding, and locomotor tagmata of members of the subphylum Chelicerata is the |
| | A) | thorax. |
| | B) | prosoma or cephalothorax. |
| | C) | opisthosoma. |
| | D) | abdomen. |
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8 | |
The second pair of appendages of members of the subphylum Chelicerata is used in sensory perception, feeding, locomotion, or reproduction. These appendages are called |
| | A) | mandibles. |
| | B) | chelicerae. |
| | C) | pedipalps. |
| | D) | pedicels. |
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9 | |
Excretory structures found in many arachnids consist of thin-walled sacs that open to the body surface at pores near the base of posterior appendages. These excretory structures are called |
| | A) | tracheae. |
| | B) | coxal glands. |
| | C) | spinneretes. |
| | D) | green glands. |
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10 | |
Most arthropods lay eggs that develop outside the body. They are |
| | A) | oviparous. |
| | B) | ovoviviparous. |
| | C) | viviparous. |
| | D) | viperous. |
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11 | |
Ticks and mites are members of the order |
| | A) | Opiliones. |
| | B) | Acarina. |
| | C) | Araneae. |
| | D) | Scorpionida. |
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12 | |
Harvestmen or daddy longlegs are members of the order |
| | A) | Opiliones. |
| | B) | Acarina. |
| | C) | Araneae. |
| | D) | Scorpionida. |
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13 | |
Of the subphylum Crustacea, ______ has the largest number of species. |
| | A) | Malacostraca |
| | B) | Branchipoda |
| | C) | Copepoda |
| | D) | Cirripedia |
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14 | |
Barnacles are members of the class |
| | A) | Malacostraca. |
| | B) | Branchipoda. |
| | C) | Copepoda. |
| | D) | Thecostraca. |
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15 | |
All of the following are crayfish mouth appendages except one. Select the exception. |
| | A) | mandibles |
| | B) | maxillae |
| | C) | pleopods |
| | D) | maxillipeds |
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16 | |
Metamorphosis often results in adult and immature stages having different feeding habits and habitats. Metamorphosis, therefore, reduces competition between adult and immature stages and has contributed to the success of the arthropods. |
| | A) | True |
| | B) | False |
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17 | |
Arthropods that have just undergone ecdysis are secretive and remain hidden because the new exoskeleton has not yet hardened. |
| | A) | True |
| | B) | False |
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18 | |
Book lungs or book gills are present in members of the subphylum Crustacea. |
| | A) | True |
| | B) | False |
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19 | |
Scorpions have a period of courtship prior to mating. Mating occurs by copulation and the direct transfer of sperm from the male to the female. |
| | A) | True |
| | B) | False |
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20 | |
Members of the class Pycnogonida are the sea spiders. Pycnogonids are dioecious. After eggs are fertilized, they are cemented onto ovigers of the male where they are carried until hatching. |
| | A) | True |
| | B) | False |
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21 | |
The appendages of a crayfish are said to be serially homologous because they have evolved from a common ancestral form. The common ancestral form is the biramous appendage, which consists of a protopodite that attaches to the body wall and gives rise to two distal processes. |
| | A) | True |
| | B) | False |
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22 | |
In the barnacles, planktonic nauplius larvae attach to the substrate by their first antennae and metamorphose to adults. |
| | A) | True |
| | B) | False |
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23 | |
Members of the subphylum Chelicerata were preadapted for terrestrial life by the exoskeleton, which was relatively impermeable to water and supportive on land. Members of the class Arachnida were some of the very early terrestrial inhabitants. |
| | A) | True |
| | B) | False |
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24 | |
Members of the subphylum Trilobitomorpha were a dominant form of life in the ocean during the Cambrian period (600 million years ago) to the Carboniferous period (345 million years ago). Today, a few living species of trilobites inhabit deep water along the eastern coast of North America. |
| | A) | True |
| | B) | False |
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25 | |
Horseshoe crabs are members of the class Merostomata. Their body form has changed little over the last 200 million years, and they are an excellent example of stabilizing selection. |
| | A) | True |
| | B) | False |
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