The oldest form of life on earth is;
a) Bacteria
b) Virus
c) Microorganisms
d) Fungi
Microorganisms enter in human body through;
a) Air
b) Water
c) Animals
d) All of these
Those microorganisms which cause disease are called;
a) Harmful microorganisms
b) Beneficial
c) Pathogens
d) none of these
Which is the smallest microorganism?
a) Fungi
b) Mushroom
c) Virus
d) Bacteria
Which of the following can reproduce only within an organism an organism?
a) Virus
b) Bacteria
c) Fungi
d) all of these
Out of the body of organism, they are nonliving.
a) Bacteria
b) Virus
c) Fungi
d) all of these
