TMA2/BIO304

·         My TMA Home ·         TMA Results ·         My Pending TMA ·         Quick Help My TMA TMA InstructionCourse Detail TMA Calendar Grading Message Board Quick Info Instructor Message Quiz Note Quiz Tip - 1Quix Tip - 2 TMA Quiz Questions               SCORE = 10.00 TMA: TMA2/BIO304 Matric Number:   BIO304 - GENERAL ECOLOGY Dr. Chukwu Maureen (mchukwu@noun.edu.ng ) 1 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 2 Which of the following carbon compounds is more resistant to break down?  carbohydrates    cellulose    proteins    fat   3 Temperate grassland records rainfall of between:  250 – 800 mm annually    350 – 860 mm annually    150 – 500 mm annually  200 – 750 mm annually 4 In which of the following is temperate deciduous not found?  Central North America  Canada    Eurasia    Eastern United States   5 In which of the following zones are deserts mainly found?  boreal  subtropical    arctic    tundra 6 Tropical grasslands often with scattered trees are called:  desert    taiga    tundra    savannah   7 Which of these is not another name for temperate grasslands?  Primerose    Prairie  Steppe    Pampas   8 Which of the following nutrients does not have gaseous or liquid reservoirs?  Phosphorus    Carbon    Water    Nitrogen 9 Which of the following is not a feature of a community?  It is static  It involves vast interaction between discrete groups    It reflects the variability of its components  The habitat type influences its components 10 One of the greatest challenges facing the world today is:  To increase its death rate  To reduce its birth rate  To produce enough food for its expanding population  To reduce the problem of pollution 11 Which of the following statements is not a feature of population regulation?  It provides a means of putting a check on population growth    It can be density dependent  It can be density independent    It can be exponential 12 Which of the following is a nitrifying bacterium?  Nitrobacter    Rhizobium    Azotobacter    Clostriduim   13 Natural ways in which organisms gain access to the huge reserves of nitrogen in the atmosphere is /are: I. identification, II. ammoniumnification, III. nitrogenfixation, IV. lightning  II alone  III alone  I and II  III and IV 14 How does oxidation of ammonium ion benefit the bacteria performing the action?  Releasing energy for synthesis of ATP  Releasing energy for synthesis of ADP  Releasing energy for synthesis of Ribulosediphosphate    Releasing energy for synthesis of Ribulosetriphosphate 15 Which of these biome radiate heat readily at night?  Tundra    Taiga    Savannah    Desert   16 Which of the following is the richest biome in terms of the number species?  Tropical seasonal forest    Temperate grassland  Tropical rain forest  Temperate deciduous forest 17 Which of the following features does not determine the overall structure of a community?  A community size  Habitat type  Physical environment  Longevity of species present 18 Crushed phosphate-rich rocks are used as:  Nuclear acid  Fats    Phosphorylated carbohydrates    Fertilizer   19 Biologist who study habitats are called:  Astrologists    Botanists    Ecologists  Zoologists 20 The symbioticbacterium that lives in the root nodules of leguminous plants is:  Azotobacter    Nitrobacter  Nitrosomonas    None of the above