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Sample Questions For Mt 2

35 Questions  I  By Cmoherman
sample questions for mt 2

  
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1.  Sponges are most accurately described as      
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B.
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E.
2.  What do all craniates have that earlier chordates did not have?    
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B.
C.
D.
E.
3.  How many of the following are characteristics of at least some members of the phylum Cnidaria? 1. a gastrovascular cavity  2. a polyp stage 3. a medusa stage 4. cnidocytes 5. a pseudocoelom      
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B.
C.
D.
E.
4.  The sharp, inch-long thorns of the crown-of-thorns sea star are its spines. These spines, unlike those of most other sea stars, contain a potent toxin. If it were discovered that crown-of-thorns sea stars do not make this toxin themselves, then the most likely alternative would be that this toxin is    
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B.
C.
D.
5.  The most recently discovered phylum in the animal kingdom (1995) is the phylum Cycliophora. It includes three species of tiny organisms that live in large numbers on the outsides of the mouthparts and appendages of lobsters. The feeding stage permanently attaches to the lobster via an adhesive disk, and collects scraps of food from its host's feeding by capturing the scraps in a current created by a ring of cilia. The body is sac-like and has a U-shaped intestine that brings the anus close to the mouth. Cycliophorans are eucoelomate, do not molt (though their host does), and their mouth develops from the blastopore. Basing your inferences on information in the previous paragraph, to which clade(s) should cycliophorans belong? 1. Eumetazoa 2. Deuterostomia 3. Bilateria 4. Ecdysozoa 5. Lophotrochozoa    
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6.  What is the main cause of guttation in plants?    
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7.  What is the probable sequence in which the following clades of animals originated, from earliest to most recent? 1. tetrapods 2. vertebrates 3. deuterostomes 4. amniotes 5. bilaterians    
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B.
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D.
E.
8.  The water vascular system of echinoderms    
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9.  If a multicellular animal lacks true tissues, then it can properly be included among the    
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D.
E.
10.  Examine the figure above. Near a goose's abdomen, the countercurrent arrangement of the arterial and venous blood vessels causes    
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B.
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D.
E.
11.  Which of the following are the only extant animals that descended directly from dinosaurs?    
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D.
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12.  In plant roots, the Casparian strip is correctly described by which of the following?    
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B.
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D.
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13.  Vertebrates and tunicates share    
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14.  Which of the following is (are) unique to animals?    
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15.  What drives the flow of water through the xylem?     
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D.
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16.  Among these choices, the least reliable indicator of a terrestrial animal's metabolic rate is the amount of    
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17.  Mycorrhizae are to the roots of vascular plants as endophytes are to vascular plants'    
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B.
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18.  Which shark structure is most analogous to a swim bladder full of gas?     
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B.
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D.
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19.  All of the following cell types are correctly matched with their functions except A) mesophyll–photosynthesis. B) guard cell–regulation of transpiration. C) sieve-tube member–translocation. D) vessel element–water transport. E) companion cell–formation of secondary xylem and phloem.     
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B.
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20.  The heartworms that can accumulate within the hearts of dogs and other mammals have a psuedocoelom, an alimentary canal, and an outer covering that is occasionally shed. To which phylum does the heartworm belong?      
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B.
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D.
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21.  Which of these are amniotes?     
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22.  Among the characteristics unique to animals is    
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23.  ________ is to xylem as ________ is to phloem.    
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24.  The value for Ψ in root tissue was found to be -0.15 MPa. If you take the root tissue and place it in a 0.1 M solution of sucrose (Ψ = -0.23 MPa), the net water flow would    
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25.  Which of the following animals uses the largest percentage of its energy budget for homeostatic regulation?    
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D.
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26.  When pathogenic fungi are found growing on the roots of grape vines, grape farmers sometimes respond by covering the ground around their vines with plastic sheeting and pumping a gaseous fungicide into the soil. The most important concern of grape farmers who engage in this practice should be that the    
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B.
C.
D.
27.  Which of the following root tissues gives rise to lateral roots?    
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B.
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D.
E.
28.  The innermost layer of the root cortex is the     
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29.  Both animals and fungi are heterotrophic. What distinguishes animal heterotrophy from fungal heterotrophy is that only animals derive their nutrition by    
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30.  Among the invertebrate phyla, phylum Arthopoda is unique in possessing members that have      
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31.  The panting responses that are observed in overheated birds and mammals dissipates excess heat by    
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32.  The body's automatic tendency to maintain a constant and optimal internal environment is termed    
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33.  Choose the option that best describes the relationship between the cell wall thickness of parenchyma cells versus sclerenchyma cells.    
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B.
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34.  Which of the following cells or tissues arise from lateral meristem activity?    
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35.  A plant developed a mineral deficiency after being treated with a fungicide. What is the most probable cause of the deficiency?    
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B.
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D.
E.
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