MCQs Botany-14 Posted on 2024-07-122024-11-08Author admin 0 MCQs Botany-14 1. Producers are organisms that use sunlight or chemical energy to create organic matter. Which of the following are NOT producers in an aquatic ecosystem? Decomposers Phytoplankton Kelp Mangroves 2. The word “cytochrome” comes from the Greek words for———— Light reaction Energy transfer Cell color Green pigment 3. Cytochromes contain a unique molecule called a ——— Hemoglobin Chlorophyll Carotenoid Heme group 4. ——– is the deepest part of a lake or ocean, where light is scarce or absent Littoral zone Benthic zone Profundal zone Neritic zone 5. Ecological niche refers to——— The role and position of a species in its environment Immediate physiological adjustments Long-term evolutionary changes None of these 6. During the daytime, if the stomata remain closed for extended periods, the concentration of O2 within the leaf is likely to ————— Unchanged Decrease Increase 7. What are the three pillars of sustainability? Economic, social, and environmental None of these Environmental, social, and technological Economic, political, and cultural 8. Phenotypic plasticity allows organisms to ——- Adjust to varying environmental conditions Permanently change their genetic code Avoid all environmental stresses None of these 9. Acclimation refers to ———- Short-term physiological adjustments Behavioral adaptation None of these Genetic changes over generations 10. Who coined the term “genetics”? William Bateson Charles Darwin None of these Gregor Mendel Loading …
