/10 Report a question What's wrong with this question? You cannot submit an empty report. Please add some details. 12345678910 Chapter 12 : Ecosystem This Quiz Contains a set of 10 Questions. The Passing Cut-off is 60%. To start the Quiz, click on the Start Button. All the Best! 1 / 10 A pyramid of biomass is inverted in aquatic ecosystems because Producers have large biomass Producers are small but reproduce rapidly Energy transfer is high Consumers are fewer 2 / 10 In a climax community, energy flow and nutrient cycling are Rapid Unstable Balanced Absent 3 / 10 The function of decomposers is to Produce food Consume producers Convert inorganic to organic matter Convert organic matter into inorganic forms 4 / 10 The main cause of energy loss in ecosystems is Transfer between organisms Heat loss during respiration Decomposer activity Nutrient recycling 5 / 10 Pyramid of energy is always Inverted Irregular Cylindrical Upright 6 / 10 The energy available to a tertiary consumer in a food chain is derived ultimately from Secondary consumers Primary consumers Producers Decomposers 7 / 10 The ecosystem with the highest annual net primary productivity is Open ocean Desert Grassland Tropical rainforest 8 / 10 Which among the following best represents a grazing food chain? Dead leaves → Earthworm → Frog Grass → Rabbit → Fox Bacteria → Fungus → Protozoa Detritus → Fungi → Insects 9 / 10 The rate of formation of new organic matter by consumers is called Primary productivity Secondary productivity Gross productivity Trophic efficiency 10 / 10 The unit used to measure productivity is kg/ha kcal/kg J/m² kcal/m²/year Your score is 0% Restart quiz
