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