Biology Selected Questions and Answers Set 32

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Q.1:- The ratio of forest area needed for ecological balance in India ? [SSC Graduate Level Exam 1999]

  1. 1%
  2. 2%
  3. 3%
  4. 4%

Q.2:- Reduced leaves and sunken stomata are the main feature of ?

  1. Epiphytes
  2. Hydrophytes
  3. Xerophytes
  4. Mesophytes

Q.3:- Convergent evolution is illustrated by ?

  1. Rat and Dog
  2. Bacterium and Protozoa
  3. Star Fish and cuttlefish
  4. Dog fish and whales

Q.4:- The term ecology is first given by ?

  1. Robert Brown
  2. Aristotle
  3. Khurana
  4. Reiter

Q.5:- In a food chain energy transfer ? [SSC Graduate Level Exam 2000]

  1. From river to earth
  2. Lower latitude to higher latitude
  3. From one organism to other organism
  4. None of these

Q.6:- Energy transfer from organism to organism in a natural community develops ?

  1. Biological Control
  2. Food Chain
  3. Food Web
  4. Pyramid of Energy

Q.7:- Which one of the following organisms is likely to show the highest concentration of DDT, one it has been introduce into the ecosystem ? [IAS (Pre)  Exam 1997]

  1. Grasshopper
  2. Toad
  3. Snake
  4. Cattle

Q.8:- An example of false fruit is ? [SSC Exam 2011]

  1. Apple
  2. Guava
  3. Mango
  4. Tomato

Q.9:- Which of the following is most effective greenhouse gases ?

  1. Freon
  2. Methane
  3. Carbon Dioxide
  4. Chloroflurocarbon

Q.10:- DDT is ?

  1. Greenhouse gas
  2. Degradable pollutant
  3. Non-degradable pollutant
  4. None of these
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Q.11:- Among pollutants which has the most lasting effect ?

  1. Carbon Monoxide
  2. Pesticides
  3. Sulphur Dioxide
  4. Smokes from Chimneys

Q.12:- Ultraviolet rays coming from Sun causes ?

  1. Lung Cancer
  2. Mouth Cancer
  3. Skin Cancer
  4. Cancer of Liver

Q.13:- Which of the following air pollutant affect the nervous system of man ?

  1. Lead
  2. Cadmium
  3. Mercury
  4. Silica

Q.14:- Cyanide poisoning causes death in seconds because ? [SSC (CGL) Exam 2015]

  1. It causes Lysis of red
  2. It denatures enzymes of the heart muscle
  3. It causes cardiac arrest
  4. It breaks the electron

Q.15:- Double Helix Model of DNA is given by ? [MPPSC (Pre) Exam 1994]

  1. Mullar
  2. Meghnath Sha
  3. Stephen Hawking
  4. Watson and Crick

Q.16:- Ozone hole is maximum over ?

  1. Europe
  2. Antarctica
  3. India
  4. Africa

Q.17:- BOD is ?

  1. Biological Oxygen Deficit
  2. Biosphere Oxygen Demand
  3. Biological Oxygen Demand
  4. None of these

Q.18:- National Environmental Engineering Research Institute is situated in ?

  1. Ranchi
  2. Cuttack
  3. Jamshedpur
  4. Nagpur

Q.19:- Waksman got the Nobel prize for the discovery of ? [SSC Exam 2015]

  1. Penicillin
  2. Streptomycin
  3. Neomycin
  4. Chloromycetin

Q.20:- Which of the following is not correctly matched ? [RRB Exam 2003]

  1. Joseph Lister : Treatment of Leprosy
  2. Joseph E. Salc : Vaccination of Polio
  3. Alexander Fleming : Discovered Penicillin
  4. Edward Jenner : Vaccination of Small Pox
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Q.21:- Scientist who laid the foundation of bacteriology ?

  1. Leeuwenhoek
  2. Louis Pasteur
  3. William Hervey
  4. Edward Jenner

Q.22:- Stethoscope was invented by ?

  1. Jenner
  2. Sabin
  3. Laennec
  4. Pasteur

Q.23:- Which one of the following is the first national park established in India ? [CDS Exam 2009]

  1. Bandipur
  2. Corbett
  3. Velavadar
  4. Periyar

Q.24:- The most important strategy for the conservation of biodiversity together with traditional human life is the establishment of ? [UPSC Exam 2015]

  1. Biosphere Reserves
  2. Botanical Garden
  3. National Park
  4. Wild Life Sanctuaries

Q.25:- Which group has the highest number of endangered species ?

  1. Mammals
  2. Fishes
  3. Reptiles
  4. Birds

 

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