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PPSC Lecturer Zoology Solved MCQs




Solved past paper MCQs of ppsc lecturer zoology bps-17. It would be helpful for the current candidates who applied for ppsc lecturer zoology and ppsc lecturer biology subject seats


PPSC Lecturer Zoology Solved MCQs

Select one option out of four given options

  1. Which of the statement about hair is true




  2. 3

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  3. The amphibians and the ____________ represents the two major branches of the tetrapods lineage




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  5. Approximately how many species of fish are known




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  7. The endodkeleton of echinoderms composed of




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  9. The first hormone that was isolated




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  11. The ultimate source of organic variation is




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  13. Which one of the following is the major group of green house gases




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  15. The structure of molluscs that forms the shell and hiouses the gills is the




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  17. In an ecosystem which one shows one way pasage




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  19. The central fluid filled cavity of the blastula is known as




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  21. The mammalian skull may be characterized as




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  23. The first terrestrial tetrapods were probably the




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  25. Which of the following phyla of animals exclusively marine




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  27. A normal green male maize is crossed with albino female. The progeny is albino because




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  29. Sertoli cells are found in the




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  31. The sum total of populations of the same kind of organisms constitute




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  33. A Molluscan shell is made of three layers arranged from the outside to the inside




  34. 1

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  35. Which one of the following can achieve protection and conservation of biodiversity




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  37. Lamarck's Theory of Organic Evolution based upon the




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  39. Myxoedema in adult is caused due to the




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  41. Testosterone is secreted by the




  42. 2

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  43. The class name Myxini or the Hagfishes refer to their




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  45. The earliest therians (Mammals) evolved in the




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  47. The development of limbs probably aided the first amphibians in the




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  49. Which of the following is odd one




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  51. ABO Blood group system is due to the




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  53. In human beings the eggs are




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  55. Pyramid of numbers deal with the number of




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  57. The morphogenetic movement change the hollow spherical blastula in to a/an




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  59. The dominant second trophic lebvel, in a lake ecosystem is




  60. 3

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  61. Which of the following classes of molluscus is thought to be the most primitive or closest to the ancestral form




  62. 1

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  63. Best suited examples given in favor of Lamarckian theory are




  64. 3

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  65. Diabetes mellitus is due to the deficiency of




  66. 4

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  67. The derivation of the genus name assigned to the invasive marine lampreys found in the Great Lakes refer to their




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  69. Unlike reptiles the first mammals were characterized by the




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  71. Some amphibians have _________________ which are pigmented cells in the skin




  72. 1

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  73. The hearts of amphibians have




  74. 4

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  75. Blue eye color is recessive to brown eye color. A brown eyed man whose mother was blue eyed marries a blue eyed woman. The children will be




  76. 1

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  77. Implementation of blastocyst




  78. 4

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  79. Which of the following structures do bivalves used in the process of digestion




  80. 3

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  81. Ratios between energy flows at different points along the food chain when expressed as percentages are called




  82. 2

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  83. Productivity is the organic matter produced




  84. 2

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  85. Oxytocin stimulate the contraction of




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  87. Aristotle's lantern is a complex set of ______________ used in the process of




  88. 1

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  89. The animals of the colder countries have small ears, short tail and limbs to avoid more loss of heat is the theme of




  90. 1

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  91. Which of the following groups of animals have cellular or unicellular body




  92. 2

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  93. Which contribute to the success of Mendel




  94. 2

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  95. Genetic identity of human male is determined by




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  97. Upper part of sea or aquatic system contains




  98. 1

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  99. The structure that is used for feeding in most molluscs is the




  100. 2

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  101. Which one of the following pairs is not correctly matched




  102. 3

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  103. Lamarck's theory of organic evolution was published in the entitled




  104. 2

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  105. Metabolic rate in mammals is controlled by the




  106. 2

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  107. The ambulacral groove is found between the




  108. 1

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  109. The agnathans and gnathasomes branched apart most likely during the




  110. 1

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  111. Many echinoderms have two parts to the stomach, these two parts are the




  112. 3

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  113. Which of the following fish may be characterized as eel like, parasitic and possessing a cartilaginous skeleton




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  115. Which of the following evolved from a group of carnivorous pelycosaurs




  116. 1

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  117. The fresh water fish that survived the Devonian period possessed




  118. 2

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  119. Which of the following group of animals have no parasite




  120. 4

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  121. tt mates with Tt. what will be the offspring




  122. 2

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  123. Fertilizin is a chemical substance produce from




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  125. Association of animals when both partners are benefited




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  127. The trochophore larva indicates a common ancestry for which of the following pairs




  128. 1

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  129. The desert animals confined their activities during the night time because they




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  131. The character of no shell, integumental scale, a reduced head and being dioecious describe which of the following molluscs




  132. 1

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  133. Which of the following facts make the Lamarckism doubtful




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  135. HCG is secreted by the




  136. 4

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  137. The echinoderms have developed the ability to exploit many sources of food. The sea star are ____________, the sea urchin are _______, and the sea cucumber are _________ .




  138. 2

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  139. The respiratory apparatus of agnathans may be characterized by




  140. 2

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  141. The early therians most resembled a small ___________.




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  143. The first well known fossil of a tetrapods was _______________




  144. 3

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  145. In the genetic cross having recessive epistasis F2 phonotypic ratio would be




  146. 3

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  147. Cross between AaBB and aaBB will form




  148. 1

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  149. RR (Red) antirrhinum is crossed with white one (ww). Offspring RW are pink, this is an example of




  150. 2

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  151. In humans the placenta is




  152. 1

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  153. Gastropoda taxonomy is currently under consideration. The traditional three sub classes are prosobranchia and two others




  154. 3

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  155. The monoplacophorans were known only from the fossils record until 1952 when _____ emerged from the deep sea trawl net




  156. 4

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  157. Neck and fore limbs in African giraffe increased in length as a result of




  158. 3

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  159. Cushing syndrome is due to the hyper secretion of




  160. 2

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  161. The larva of the lamprey is known as the




  162. 3

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  163. The implied presence of sebaceous and sweat glands in early mammals signified what




  164. 2

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  165. The adaptive radiations of the mammals occurred during the




  166. 4

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  167. To facilitate cutaneous respiration the skin of the amphibians is




  168. 2

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  169. The kidney of amphibians are




  170. 3

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  171. Members of the order _____________ often produce spermatophore




  172. 1

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  173. A dihybrid condition is




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  175. Torsion is the process that rotates the __________ of the body of gastropods




  176. 3

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  177. Te total output of photosynthesis, including the organic matter used up in respiration during the period of measurement is called




  178. 2

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  179. In the animal kingdom several degree of interspecific interactions can be recognized, Which one of the following true for protocooperation interactions




  180. 4

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  181. Which of the following concept is attributed to Lamarck




  182. 1

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  183. Goitre is caused by the




  184. 2

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