MCQs Biology-21 Posted on November 28, 2025November 28, 2025Author agropublishers 0 MCQs Biology-21 1. The wavelength range that constitutes Photosynthetically Active Radiation (PAR) is______ 300–500 nm 200–300 nm 400–700 nm 700–900 nm 2. The IUCN Red List categorizes species based on their —————- Evolutionary history Population size Geographic range Conservation status 3. Which of the following environments can serve as a natural habitat for free-living amoebae? Damp terrestrial soil and leaf litter All of these Marine and brackish water sediments Freshwater bodies like lakes and ponds 4. Eructation in ruminants refers to ———- Movement of food to the omasum Absorption of volatile fatty acids Regurgitation of cud Release of fermentation gases 5. Chemical degradation of persistent organic pollutants (POPs) in soil is predominantly influenced by the presence of____________ High Oxygen Concentrations Redox Conditions Mycorrhizal Fungi Soil Nutrient Status 6. Sustainable Development Goals (SDGs) are a set of ________ global goals 15 global goals 10 global goals 17 global goals 12 global goals 7. What is soil fauna? Microorganisms in soil Animals that live in soil Minerals in soil Plants that grow in soil 8. Protista are diverse group of microrganisms, and are believed as precursors of __________ Plants Cyanobacteria Blue-green algae Bacteria 9. The term “canopy” in a forest stand refers to __________ Forest floor Root system Foliar cover Trunk of trees 10. The earliest archaeologically documented fruit used by humans is the_________ Olive Date palm Grape Fig Loading … Question 1 of 10
