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Sample Questions For Mt 1

34 Questions  I  By Cmoherman

  
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1.  Sympatric speciation occurs most commonly in          
A.
B.
2.  Which agent of selection is the only source of new allelic variation?      
A.
B.
C.
D.
E.
3.  The K-T boundary is associated with what phenomenon/phenomena?       
A.
B.
C.
D.
E.
4.  The supercontinent that existed 250 million years ago is called       
A.
B.
C.
D.
E.
5.  Which one of these people did not contribute to Darwin’s thought process about evolution?    
A.
B.
C.
D.
E.
6.  The goal of natural selection is to    
A.
B.
C.
D.
E.
7.  One of the reasons we have little sense of plants having alternation of generations is because    
A.
B.
C.
D.
E.
8.  As a single cell gets bigger and bigger, what about it gets smaller and smaller?    
A.
B.
C.
D.
E.
9.  What was the prevailing belief prior to the time of Lyell and Darwin?    
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B.
C.
D.
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10.  Which of the following must exist in a population before natural selection can act upon that population?    
A.
B.
C.
D.
E.
11.  The role that humans play in artificial selection is to     
A.
B.
C.
D.
E.
12.  Structures as different as human arms, bat wings, and dolphin flippers contain many of the same bones, these bones having developed from very similar embryonic tissues. How do biologists interpret these similarities?    
A.
B.
C.
D.
E.
13.  Currently, two extant elephant species (X and Y) are placed in the genus Loxodonta and a third species (Z) is placed in the genus Elephas. Assuming this classification reflects evolutionary relatedness, which of the following is the most accurate phylogenetic tree?     
A.
B.
C.
D.
E.
14.  Which of the following is not an observation or inference on which natural selection is based?    
A.
B.
C.
D.
E.
15.  Which of the following is a true statement concerning genetic variation?    
A.
B.
C.
D.
E.
16.  In a Hardy-Weinberg population with two alleles, A and a, that are in equilibrium, the frequency of allele a is 0.1. What is the frequency of individuals with AA genotype?    
A.
B.
C.
D.
E.
17.  Which of the following is most likely to produce an African butterfly species in the wild whose members have one of two strikingly different color patterns?    
A.
B.
C.
D.
E.
18.  D. Anopheles mosquitoes, which carry the malaria parasite, cannot live above elevations of 5,900 feet. In addition, oxygen availability decreases with higher altitude. Consider a hypothetical human population that is adapted to life on the slopes of Mt. Kilimanjaro in Tanzania, a country in equatorial Africa. Mt. Kilimanjaro's base is about 2,600 feet above sea level and its peak is 19,341 feet above sea level. If the incidence of the sickle-cell allele in the population is plotted against altitude (feet above sea level), which of the following distributions is most likely, assuming little migration of people up or down the mountain?     
A.
B.
C.
D.
19.  There is still some controversy among biologists about whether Neanderthals should be placed within the same species as modern humans or into a separate species of their own. Most DNA sequence data analyzed so far indicate that there was probably little or no gene flow between Neanderthals and Homo sapiens. Which species concept is most applicable in this example? A) phylogenetic B) ecological C) morphological D) biological     
A.
B.
C.
D.
20.  Among known plant species, which of these have been the two most commonly occurring phenomena that have led to the origin of new species? 1. allopatric speciation 2. sympatric speciation 3. sexual selection 4. polyploidy    
A.
B.
C.
D.
21.  Approximately how far back in time does the fossil record extend? A) 3.5 million years B) 5.0 million years C) 3.5 billion years D) 5.0 billion years     
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B.
C.
D.
22.  Upon being formed, oceanic islands, such as the Hawaiian Islands, should feature what characteristic, leading to which phenomenon?    
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B.
C.
D.
E.
23.  Which kingdom has been replaced with two domains?    
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B.
C.
D.
E.
24.  Which of the following is (are) problematic when the goal is to construct phylogenies that accurately reflect evolutionary history?    
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B.
C.
D.
25.  Based on this tree, which statement is not correct?        
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B.
C.
D.
26.  Match the numbered terms to the description that follows. Choose all appropriate terms.
  1. autotroph
  2. heterotroph
  3. phototroph
  4. chemotroph
an organism that relies on photons to excite electrons within its membranes    
A.
B.
C.
D.
27.  All protists are     
A.
B.
C.
D.
E.
28.  The functional role of sporopollenin is primarily to    
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B.
C.
D.
E.
29.  Which of the following is true of the life cycle of mosses? A) The haploid generation grows on the sporophyte generation. B) Spores are primarily distributed by water currents. C) Antheridia and archegonia are produced by gametophytes. D) The sporophyte generation is dominant. E) The growing embryo gives rise to the gametophyte.     
A.
B.
C.
D.
E.
30.  Big Bend National Park in Texas is mostly Chihuahuan desert, where rainfall averages about 10 inches per year. Yet, it is not uncommon when hiking in this bone-dry desert to encounter mosses and ferns. One such plant is called "flower of stone." It is not a flowering plant, nor does it produce seeds. Under arid conditions, its leaflike structures curl up. However, when it rains, it unfurls its leaves, which form a bright green rosette on the desert floor. Consequently, it is sometimes called the "resurrection plant." At first glance, it could be a fern, a true moss, or a spike moss. Which of the following features is most important in order for true mosses and ferns to survive and reproduce in the desert?    
A.
B.
C.
D.
31.  Which group is noted for the independence of gametophyte and sporophyte generations from each other?    
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B.
C.
D.
E.
32.  In addition to seeds, which of the following characteristics are unique to the seed- producing plants?    
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B.
C.
D.
E.
33.  Which of the following statements correctly describes a portion of the pine life cycle?    
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B.
C.
D.
34.  How have fruits contributed to the success of angiosperms?    
A.
B.
C.
D.
E.
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