Ecosystem questions
336 published questions with worked solutions.
- The rate of conversion of light energy into the chemical energy of organic molecules in an ecosystem is
- The biomass made available by the producer for consumption by herbivores and the decomposers is called
- _______ is the rate of productivity of organic matter by consumers.
- The annual net primary productivity of the whole biosphere is approximately
- Which one of the following is the most productive ecosystem?
- Productivity at the second trophic level is always
- Fragmentation, leaching and catabolism are some of the important steps of decomposition. Study the following statements (i), (ii)...
- Read the given statements and select the correct option. **Statement 1:** Decomposition is the physical and chemical breakdown of...
- Match column I with column II and select the correct option from the given codes. | Column I | Column II | |---|---| | A. Gross...
- During the process of decomposition,
- Select the option that correctly identifies A, B and C in the given table. | Organism | Trophic level | Food chain |...
- Match the following columns and select the correct option. | Column I | Column II | |---|---| | A. Gross primary productivity |...
- Given below is a food web: Grass → Grasshopper/Mouse/Rabbit → Lizard/Toad/Snake → Fox/Hawk/Bird, with Grass also feeding directly...
- In an aquatic ecosystem, the organism present at the trophic level equivalent to cows in grasslands is
- If 10 joules of energy is available at the producer level, then the amount of energy present at the level of secondary consumers...
- Read the following statements regarding food chains and select the correct ones. (i) Removal of 80% tigers from an area resulted...
- In an open ocean, the biomass of primary producers (microscopic algae) is often lower than the biomass of higher trophic levels...
- The energy and biomass relationship between organisms at different trophic levels can better be expressed by
- Study the following ecological pyramids carefully. Pyramid A (numbers): TC-3, SC-3,54,000, PC-7,08,000, PP-58,42,000 Pyramid B...
- Read the following statements and select the correct ones. (i) A given species may occupy more than one trophic level in the same...
Other chapters
Alcohols, Phenols and EthersAldehydes, Ketones and Carboxylic AcidsAlternating CurrentAminesAnatomy of Flowering PlantsAncient Indian HistoryAnimal KingdomApplication of DerivativesArea Under CurveAromatic Compounds and Aryl HalidesAtomsBasic Mathematics and LogarithmBinomial TheoremBiodiversity and ConservationBiological ClassificationBiomoleculesBiotechnology and Its ApplicationsBiotechnology: Principles and ProcessesBody Fluids and CirculationBreathing and Exchange of GasesCell Cycle and Cell DivisionCell: The Unit of LifeChemical Bonding and Molecular StructureChemical Coordination and Integration