General knowledge:: Biology

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Mycobacterium leprae causes leprosy, Corynebacterium diphtheria causes diphtheria and Vibrio comma causes

A. tetanus B. influenza
C. cholera D. typhoid

Ptyalin is an enzyme produced in the

A. salivary glands B. pituitary glands
C. thyroid glands D. pancreas

Nitrogen is fixed in ecosystems in ways stated below. Which one of the statements below is false?

A. By cyanobacteria B. By electrical discharges in the atmosphere
C. By industrially synthesised fertilizer D. By denitrification

Pollen grains in plants are produced in

A. roots B. leaves
C. flower D. stem

Pollination by wind is called

A. anemophily B. hydrophily
C. zoophily D. entomophily

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