TMA4/BIO304

My TMA Home TMA Results My Pending TMA Quick Help My TMATMA InstructionCourse DetailTMA CalendarGrading Message BoardQuick InfoInstructor Message Quiz NoteQuiz Tip - 1Quix Tip - 2 TMA Quiz Questions TMA: TMA4/BIO304        SCORE       10.00 Matric Number:   BIO304 - GENERAL ECOLOGY Dr. Chukwu Maureen (mchukwu@noun.edu.ng ) 1 Which of the following is not true of chlorofluorocarbons ( CFC ) ? they have been manufactured in large amounts since their invention they are used in fire - extinguishers they are used in aerosols they are used in heating systems 2 Which of the following is not true of kelps ? they are forests of large brown algae they are found in areas where there is plentiful supply of nutrients their productivity is low they enter the food web in form of detritus 3 Which of the following is the most common animal found in a marine rocky shore ? birds fish insects invertebrates 4 Which of the following does not occur as a stream flows from its source ? the bed become more steep the speed decreases the volume of water increases oxygen level falls 5 The best developed tropical fresh water swamp forests are those of the : Amazon basin Florida Coastal zone intertidal zone 6 Which of the following is the major influential factor in alpine biomes ? latitude elevation altitude seasonal variation 7 In which of the following biomes do some birds and mammals migrate during the winter ? tropical rainforest tundra temperate rainforest boreal forest 8 Which of the following is the dominant life form in temperate deciduous forest ? Shrubs perennials trees grasses 9 Which of the following biomes is subject to fire ? savanna desert tundra taiga 10 Which of the following is not an important climatic factor in terrestrial biomes ? altitude elevation topography humidity 11 Which of the following is not a major period of human population increase ? caused by the development of tools by palaeolithic humans correspond with the change from hunter - gathered societies to settled agriculture associated with the recent industrial revolution correspond to the present advancement in technology 12 What causes global warming ? increased concentration of carbon in the atmosphere reduced concentration of oxygen in the atmosphere increased concentration of carbon monoxide in the atmosphere increased concentration of carbon dioxide in the atmosphere 13 Which of the following methods of presenting population show males and females separately on the graph? population estimate population life tables population survivorship curves population pyramid 14 Very small populations are not likely to be extinct from : inbreeding natural disturbances random events out breeding 15 Primary succession on a rock is called : hydrosere lithosere atmosere xerosere 16 The distribution of organisms may take the following patterns except : evenly spaced clumped distribution spersed distribution randomly dispersed 17 Which of the following statements best define nitrogen fixation ? the use of atmospheric nitrogen by plants the presence of nitrogen in the soil the conversion of nitrogen into nitrogenous substances the reduction of atmospheric nitrogen to ammonium ion 18 Which of the following carbon compounds is more resistant to break down? carbohydrates cellulose proteins fat 19 Which of the following is not a fundamental steps in the operation of the ecosystem ? production of organic materials by producers decomposition of inorganic compounds transformation to forms suitable for the nutrition of the producers conversion of thunder storm to nitrates 20 In an ecosystem, the organism which changes light energy into stored chemical energy is the : consumer decomposer producer carnivore