4. Algae are a large and diverse group
of simple, typically autotrophic
organisms, ranging from unicellular to
multicellular.
Spirogyra
5. Bacteria are a large domain of Rod Shaped
Bacteria
Micro-organisms. Bacteria have a wide range
of shapes ranging from spheres
to rods and spirals. Typhoid
and tuberculosis are caused by bacteria.
6. A virus is a small infectious agent that can
reproduce only inside the host
organisms. Virus infect all type of living
organisms from animals to plants.
Common ailments like cold, influenza, are
caused by virus. Serious diseases like
Polio, chickenpox, measles are also
caused by virus.
7. A fungus is a member of a large group
of organisms which include micro-organisms
such as yeast and moulds. These organisms
are classified as a kingdom, fungi.
Skin diseases are caused by fungi.
8. Protozoa is a diverse group of unicellular
organisms. Protozoa cause malaria, dysentery,
sleeping sickness
etc.
Paramecium
