Q1. Which ecological pyramid can be inverted in a forest ecosystem?A. Pyramid of biomassB. Pyramid of energyC. Pyramid of numberD. Both 1 and 3
Q2. Which factor most directly influences the rate of primary productivity?A. Amount of decomposersB. Availability of sunlightC. Number of secondary consumersD. Predation rate
Q3. Which component of an ecosystem converts inorganic substances into organic material using sunlight?A. ConsumersB. DecomposersC. AutotrophsD. Detritivores
Q4. Why is the pyramid of number sometimes inverted in a forest ecosystem?A. Producers are more numerous than consumersB. A few large trees support many herbivoresC. Consumers store more energy than producersD. Energy transfer is 100% efficient
Q5. Which of the following factors affects the rate of decomposition?A. Temperature and soil moistureB. Presence of herbivoresC. Wind speedD. Number of primary producers
Q6. Which of the following is an incorrect statement about decomposers?A. Decomposers break down organic matterB. Decomposers help in nutrient recyclingC. Decomposers contribute to humus formationD. Decomposers are not involved in food chains
Q7. Which of the following is an example of a primary consumer in an aquatic ecosystem?A. PhytoplanktonB. ZooplanktonC. Small fishD. Sharks
Q8. Which of the following best describes the process of leaching in decomposition?A. Breakdown of detritus into smaller particlesB. Conversion of organic matter into inorganic substancesC. Dissolution and removal of water-soluble inorganic nutrientsD. Accumulation of resistant organic material
Q9. Which of the following statements about net primary productivity (NPP) is incorrect?A. NPP is the energy available to herbivoresB. NPP is always greater than gross primary productivity (GPP)C. NPP accounts for respiration lossD. NPP is influenced by environmental conditions
Q10. Which trophic level does a secondary consumer occupy in a grazing food chain?A. FirstB. SecondC. ThirdD. Fourth