Biology

1

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

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

2

Ptyalin is an enzyme produced in the

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

3

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

4

Pollen grains in plants are produced in.

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

5

Pollination by wind is called

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