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

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  1. Which of the statement about hair is true




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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




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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




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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




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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




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  63. Similar niches different commonalities or in different regions are commonly occupied by species possessing similar habits, adaptations and adjustments, such species are called




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




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  67. Diabetes mellitus is due to the deficiency of




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  69. which of these classes are characterized with no anus, no suckers, articulated ossicles, and a madreporite on the oral surface




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




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  73. Unlike reptiles the first mammals were characterized by the




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




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  77. The hearts of amphibians have




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  79. 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




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  81. Implementation of blastocyst




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




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




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  87. Productivity is the organic matter produced




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  89. Oxytocin stimulate the contraction of




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




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  93. The structure in the intestine of chondroitin fish and some primitive osteichthyean fish that increases the surface area is the




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




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




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  99. Which contribute to the success of Mendel




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  101. Genetic identity of human male is determined by




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  103. Upper part of sea or aquatic system contains




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




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




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




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  111. Metabolic rate in mammals is controlled by the




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  113. The ambulacral groove is found between the




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




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




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




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




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




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




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




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  129. Fertilizin is a chemical substance produce from




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  131. Association of animals when both partners are benefited




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




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




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




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  139. What is the correct sequence of zonation in the lentic environment (i) Profundal zone (ii) Sub Littoral zone (iii) Littoral zone




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  141. Which of the following facts make the Lamarckism doubtful




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  143. HCG is secreted by the




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  145. 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 _________ .




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  147. The respiratory apparatus of agnathans may be characterized by




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  149. The early therians most resembled a small ___________.




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




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




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  155. Cross between AaBB and aaBB will form




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




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  159. In humans the placenta is




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




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




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




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  167. Cushing syndrome is due to the hyper secretion of




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  169. Which of these classes is characterized by an endoskeleton test, a complex chewing apparatus, no arms, pedicellaria with three jaws, closed ambulacral grooves, and movable spines




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  171. The larva of the lamprey is known as the




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




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  175. The adaptive radiations of the mammals occurred during the




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




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  179. The kidney of amphibians are




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  181. Members of the order _____________ often produce spermatophore




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  183. A dihybrid condition is




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




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




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




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  191. Which of the following concept is attributed to Lamarck




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  193. Goitre is caused by the




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