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Organisms and Populations

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Advanced Botany

Plant Growth and Development
Organisms and Populations
Ecosystem
Biodiversity and Conservation
Environmental Issues
Microbes in Human Welfare
Strategies for Enhancement in Food Production
Molecular Basis of Inheritance
Principles of Inheritance and Variation
Sexual Reproduction in Flowering Plants
Reproduction in Organisms
The Living World
Respiration in Plants
Photosynthesis
Mineral Nutrition
Transport in Plants
Cell Cycle and Cell Division
Cell-The Unit of Life
Anatomy of Flowering Plants
Morphology of Flowering Plants
Plant Kingdom
Biological Classification
  1. Keystone species in an ecosystem are those
    1. present in maximum number
    2. that are most frequent
    3. attaining a large biomass
    4. contributing to ecosystem properties
Correct Option: D

The keystone species in an ecosystem are those who are the main contributors to the ecosystem.


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