Medicines are used to

Microorganisms are

Other name for living things is

AIDS, Rubella, influenza, mumps and hepatitis is caused by

The introduction of dead or weekend germs into body orally or by injection so as to train body to fight against the real germ should they attack body is

Amoeba, paramecium and bacteria are examples of

Heating of food is done in pasteurization to prevent

Bacteria is very tiny and cannot be seen with

Bacteria reside in mouth of organism in form of

E.coli can reproduce and become double in

It was 19th century when scientists discovered that diseases are caused by

Microorganisms can cause a food to

Like plants and animals, microorganisms are

Diseases can be prevented by help of

The rotting of bread and orange is due to a

People who consume contaminated water or food have parasites in their

Teeth erosion is known as

During the process of decomposition things released are water vapor and

Microorganisms which obtain their food by absorbing nutrients from their hosts are

A healthy body can fight against many