Biology MCQ Question and Answer
Biology MCQ Question and Answer
191. Nitrogen is fixed in ecosystems in ways stated below. Which one of the statements below is false?
- By cyanobacteria
- By electrical discharges in the atmosphere
- By industrially synthesised fertilizer
- By denitrification
192. Plants developing in dry conditions are
- xerophytes
- mesophytes
- lithophytes
- hydrophytes
193. Mycobacterium leprae causes leprosy, Corynebacterium diphtheria causes diphtheria and Vibrio comma causes
- tetanus
- influenza
- cholera
- typhoid
195. Pollination is best defined as
- transfer of pollen from anther to stigma
- germination of pollen grains
- growth of pollen tube in ovule
- visiting flowers by insects
196. Photosynthesis is a process
- reductive and exergonic
- reductive and catabolic
- reductive, endergonic and catabolic
- reductive, endergonic and anabolic