2nd PUC Biology Series 9 December 3, 2020December 22, 2020wefru PUC Science 2nd Year Biology Series-9 quiz 1 Created on December 02, 2020 By wefru 2nd puc Biology Series 9 TEST YOUR KNOWLEDGE OF SCIENCE 1 / 10 Q.81 Carbon mono-oxide is a pollutant because reacts with haemoglobin makes nervous system inactive it reacts with O2 it inhibits glycolysis. 2 / 10 Q.82 How carbon monoxide, emitted by automobiles, prevents transport of oxygen in the body tissues? by forming a stable compound with haemoglobin (b) (c)(d) by obstructing the reaction of oxygen with haemoglobin by changing oxygen into carbon dioxide by destroying the haemoglobin 3 / 10 Q.83 In a terrestrial ecosystem such as forest, maximum energy is in which trophic level? T3 T4 T1 T2 4 / 10 Q.84 Which of the following communities is more vulnerable to invasion by outside animals and plants? temperate forests oceanic island communities mangroves tropical evergreen forests 5 / 10 Q.85 The rate at which light energy is converted into chemical energy of organic molecules is the ecosystems net secondary productivity gross primary productivity net primary productivity gross secondary productivity. 6 / 10 Q.86 The Minamata disease in Japan was caused through the pollution of water by cyanide methyl isocyanate Lead mercury 7 / 10 Q.87 D.D.T. is not a pollutant (b) (c) (d) an antibiotic a non-degradable pollutant a biodegradable pollutant. 8 / 10 Q.88 Which of the following organism is likely to have more concentration of D.D.T. in its body? top carnivores primary producers herbivores carnivores 9 / 10 Q.89 Which of the following is pollution related disorder? silicosis pneumonicosis fluorosis leprosis 10 / 10 Q.90 Energy transfer from one trophic level to other, in a food chain, is 10% 20% 1% 2%. Your score is The average score is 70% LinkedIn Facebook Twitter VKontakte 0% Restart quiz