BT101 Final Term Current Solved Questions

MUHAMMAD IMRAN BT101 - Ecology, Biodiversity & Evolution-I CURRENT QUESTIONS SOLVED FINAL TERM SEPTEMBER 2020 QUESTIONS 212 / MCQs 118

1. The external factors which control the ecosystem are _ of internal factors. ___________________Independent
2. Fungi is ____ decomposer……………………………………………………………… ________________________________________Primary
3. The orientation toward a factor is called ____..............................................._______________________________. Taxis
4. When a population reach a ____ there are more individual trying to use the same quantity of
5. Complexity of ecosystem make it more_____.................................................. _______________________________Stable
6. Camouflage use of any combination of……………………………………………............____________________________ Colouration
7. Near the surface of earth ozone concentration about ___ ppm……………………__________________________0.04-0.15
8. The total average height of troposphere is _____km……………………………………________________________________13Km
9. Adult human body contain _____ of water…………………………………………………...___________________________________60%
10. What is the example of chemotrophs……………………………………………………………______________________________Microbes
11. The rate that new organic matter by means of individual growth and reproduction in all herbivores………………………………………………………………………………………. _____________________________Gross productivity.
12. Variety of tools to track size of population in one tool………..___________________________Survivorship curve
13. 541 million years ago O2 made stable of atmosphere……………………._____________________________________ 13%
14. Region with identical climate have fauna and flora according to Buffon’s law…_________________Different
15. Natural selection variation from a population by favoring one allele over other at a gene locus…_____________________________________________________________________________________________.Odd
16. First vertebrates possess amitotic eggs………………………………………………………….___________________________.Reptile
17. Toxoplasmosis caused by toxoplasma virulent in immune suppressed individually…________________AIDS
18. Rate at new organic matter formed in all herbivores………..._______________________secondary productivity.
19. Example of winter sleep………………………………………………………………………….______________________________________bear
20. Speciation occur in single population………………………………………………………______________________________sympatric
21. Animal changes its color rapidly……………………………………………………………..______________________________chameleon
22. Above thermosphere is…………………………………………………………………………..________________________________exosphere
23. Symbiosis relationship between………………………………………………………. __________________________different species
24. bird voice box……………………………………………………………………………………._________________________________________syrinx
25. Extinct hippopotamus like……………………………………………………………………….__________________________________taxodon
26. sense organs widely dispersed in………………………………………………………__________________________________Annelida
27. The external factor which control the ecosystem are ----------------------- of internal factor __________________________________________________________________________________________(Independent)
28. Fungi is ---------------_______________________________________________________________ ( Decomposer)
29. The orientation toward a factor is called ______________________________________________________ ( Taxis)
30. When a population reaches a ----------- there are more individual trying to use the same quality of
31. Complexity of ecosystem makes it more-------______________________________________________ ( Stable)
32. Camouflage use of any combination of materials coloration or __________________________ (Illumination)
33. ------------ Rapidly changes its color. __________________________________________________(Chameloen)
34. Near the surface ozone concentrations about --------------------------____________ ( 0.04-0.15ppm)
35. The total average height of the troposphere is__________________________________ ( 0-12 km) (0-7 miles)
36. Adult human body contains ___________ of water by weight ______________________________________(60%)
37. Animal use ----------------- energy to make organic molecules_________________. ( Chemical energy)
38. Ionosphere produced in ------------- _______________________________________________( Thermosphere)
39. Lysosome were discovered by the beigian cytologist de duve in ---------------- by _________( 1950s)
40. 541 million years ago Oxygen made stable___________ of atmosphere ___________________________(15 %)
41. The net -------------of direct and indirect relationship is called tropic cascades. ___________( Effect)
42. There can be outflow or inflow ------------------ in a gene pool. __________________________( Genes)
43. The second major layer of Earth’s atmosphere is --------------------- ____________( Stratosphere)
44. Two or more species living in same habitat reciprocally ---------------- each other evolution ______________________________________________________________________________________________( Affect)
45. Consumers of plants are ____________ and physiologically adapted to eating plant material ________________________________________________________________________________________(Anatomically)
46. Y axis is a logarithmic plots of numbers of survivors X axis is a linear plot ___________________ ( Age)
47. Conditions in the reproductive ___________ of a female may not support the sperm of male. ___( Tract)
48. Major mechanism through which genetic material is generated during molecular evolution.___ (New)
49. Evolutionary changes weather over long period of rapid are result or change in makeup ____( Genetic)
50. ----------------- are characteristics that increase the potential of an organism or species to successfully reproduce in a specified environment. ______________________________________( Adaptation)
51. Extinct hippopotamus like animals now called _____________ ________________________________( Toxodon)
52. This process of evaporation through plant leave is called ------------------- ________(Transcription)
53. Oxygen atom form ___________________________________________________________________________ ( Ozone)
54. Cladogram depict the sequence in the of derived characters -----------------____________- ( Origin)
55. They engulf food by -------------- using pseudopodia _______________________________(Phagocytosis)
56. The total average highet of the troposphere is---------------- ______________________________ ( 13 km)
57. Form of precipitations that is ------------- acidic .It has elevate levels of hydrogen ions(low ph)_______________________________________________________________________________________ ( Unusually)
58. Genomic DNA sequence of an archaean and --------------------------- were first compared in 1996______________________________________________________________________________________ ( Bacterium)
59. He joined -------------- of medicine Scotland in 1825 but he was not interested in being physician. ______________________________________________________________________________________________( School)
60. Ventral gland cells called ------------------______________________________________________ ( Renette)
61. Domain eukaryote evolved ---------------- billion years ago.__________________________________ ( 2.7)
62. ---------------- was first isolated and named in 1817 _________________________________( Chloroplast)
63. What is the example of chemoautotroph----------------------________________ ( microbes, Mussels)
64. The rate that new organic matter is made by means of individual growth and reproduction in all the herbivores. ________________________________________________________________( Secondary productivity )
65. Variety of tools to track the size of population is one tool_______________________ (Survivorship curve)
66. Regions with identical climate have -------------------------floras and faunas (buffoons law) ___________________________________________________________________________________________( Different)
67. Natural selection -------------- variations from a population by favoring one allele over other at a gene locus.________________________________________________________________________________ ( Removes)
68. First vertebrates to possess amniotic eggs in ------------------__________________________ ( Reptiles)
69. Toxoplasmosis caused by toxoplasma virulent in immunosuppressed individual as in --------------- ---------______________________________________________________________________________________ ( AIDS)
70. Plant use light energy into photosynthesis. They convert light energy into -------------------------- --------------_______________________________________________________________ ( Chemical bond energy)
71. Gross primary production (GPP) is the amount of ---------------------- energy as biomass that primary producers create in a given length of time. ________________________________( Chemical energy)
72. The ------------------- of solar energy (1%) is consumed in photosynthesis. ________( Small fraction)
73. --------------------------- Competition occurs between two species to use the same resources______________________________________________________________________________. (Interspecific)
74. One species gain benefits while those of the other species are neither benefited nor harmed. _______________________________________________________________________________________(Commensalism)
75. One species gain benefit other species is harmed _________________ ______________________( Parasitism)
76. ---------------- is located above the thermosphere. ____________________________________( Exosphere)
77. ------------------- is responsible for sustaining life on earth. ________________________( Atmosphere)
78. Disruption of ecosystem interaction is an important cause of --------__________________ ( Habitat loss)
79. ----------------- is removal of forest or stand of trees from land which is then converted to a non forest use._____________________________________________________________________________ (Deforestation)
80. Land pollution ------------------ affects the respiratory system of human beings. _______(Indirectly)
81. ------------------------- are strongly affected by light pollution. _________________________(Reptiles)
82. ---------------- is process of increasing concentration of toxic substance.______ (Biomagnifications)
83. First evolutionary scheme was proposed by jean Baptiste Lamarck in _________________________ (1809)
84. Genes of all traits are present in population in form of ---------------________________________ (Allele)
85. This speciation occurs within a single population. ----------------___________ ( Sympatric Speciation)
86. Evolutionary changes are occurring ------------------ over millions of years. ___________(Gradually)
87. Termits is the example of _______________________________________________________________ xylophages
88. Formation of new forms from an ancestral species, usually in response to the opening of new habitats is called__________________________________________ adaptive radiations.
89. Skeleton of Echinodermata consists of a series of calcium carbonate plates called__Ossicles
90. Activated sludge-sewage mixture is called mixed______________________________ liquor
91. The organism occupies is the total of all the ways it uses the resources of its environment.__________________________________________________________ niche
92. Form of precipitation that is unusually acidic_______________________________ acid rain
93. All of the frogs in a particular pond or all of the sea urchins in a particular tidepool make up a ____________________________________________________________________deme
94. The final community is the ….community___________________________________ climax
95. Stormwater runoff is the number ….cause of stream impairment in urban areas________1
96. Decreases in genetic diversity make populations …likely to withstand environmental stress_________________________________________________________________ less
97. Different populations of ….species are geographically isolated____________________ same
98. Fitness is quantified as …..success _________________________________ reproductive
99. Covering of ….. is called a plumage_____________________________________ feathers
100. Osmoregulation is a Physiological adaptation to conserve _____________ water / fluid
101. Most reptiles excrete _____________________________________________uric acid