Question

Define disease and its causes​

Answer 1

Answer:

Infectious diseases are disorders caused by organisms — such as bacteria, viruses, fungi or parasites. Many organisms live in and on our bodies. They're normally harmless or even helpful. But under certain conditions, some organisms may cause disease. Some infectious diseases can be passed from person to person.

Answer 2

${ \huge { \tt{ \underline{ \underline{{Diseases}}}}}}$

A disease is a pathological condition of a body part, an organ, or a system resulting from various causes such as infection, genetic defect or environmental stress and is characterized by an identifiable group of signs or symptoms.

$\large\tt \underline \blue{Causes \: of \: disease}$

• Bacteria
• Viruses
• Parasites
• Lack of nutrients
• Fungi

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MORE TO KNOW:

TYPES OF DISEASES:

• Communicable diseases

Diseases that can spread fromone person to another are called communicable diseases.

Example: chicken pox, measles, common cold etc.

• Non-Communicable diseases

Diseases that cannot spread from one person to another are called non communicable diseases.

Example: AIDS, marasmus, COPD, asthma etc.

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