Ecosystem questions
336 published questions with worked solutions.
- **Assertion:** The pyramid of number of a pond ecosystem is upright. **Reason:** Phytoplanktons are maximum and secondary...
- **Assertion:** The pyramid of energy is always upright. **Reason:** Number of autotrophs in the pyramid of energy are maximum.
- Consider the following statements about limitations of ecological pyramids. I. It never takes into account the same species...
- Consider the following statements. I. The pyramid of biomass is inverted in a pond ecosystem II. Pyramid of energy is never...
- Consider the following ecosystems. I. Pond ecosystem II. Terrestrial ecosystem III. Oceans ecosystem IV. Forest ecosystem There...
- A series of changes in the structure and composition of communities on a previously barren area is
- The total amount of nutrients like carbon, phosphorus, calcium, etc., present in the soil at any time is called
- The movement of nutrient elements through the various components (abiotic and biotic) of an ecosystem is called
- Another name of nutrient cycling is
- In an ecosystem, the cycling of nutrients is known as
- **Assertion:** Ecological succession can turn a lake into a dryland forest with time. **Reason:** A bare rock can become a forest...
- **Assertion:** Nutrient cycle means the cycling of glucose or reserved food material within the plant body. **Reason:** Transfer...
- In an ecosystem, the insectivorous plants are placed in
- Refer to the given energy pyramid (values in kcal/m²/yr, bottom to top): Solar radiation (IV) → Primary producer (III, 1000) →...
- What is the rate of secondary production in the energy pyramid given below (values in kcal/m²/yr, bottom to top): Solar radiation...
- Which one of the following processes during decomposition is correctly described? [NEET 2013]
- Secondary productivity is the rate of formation of new organic matter by [NEET 2013]
- Identify the possible link "A" in the following food chain. [AIPMT 2012] Plant → Insect → Frog → "A" → Eagle
- Which ecosystem has the maximum biomass? [NEET 2017]
- The mass of living material at a trophic level at a particular time is called [AIPMT 2015]
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