A rusty nail can carry ............... that cause disease if a person is scratched by the nail.

Influenza, the common cold, and HIV are examples of diseases caused by viruses

The most common fungal diseases are skin infections.

•A disease that can`t spreads from person to person is called a contagious disease.

Untreated water, such as rivers and streams, are safe to drink directly.

.....is the largest part of the brain. It is where you think, solve problems, and store memories.

....... neurons move impulses from the brain and spinal cord to other parts of the body

The ....... help you to maintain balance

The tongue is covered with taste buds that contain taste cells

•Nerve receptors for small are located in the lower part of your nasal cavity.

The .......... gland controls metabolism

it is a condition when The cells that control movement are damaged

It is a condition affects the ability of the brain to send signals to the rest of the body.

........is the swelling and increased blood flow that happens as the body reacts to the pathogen

The ............... system is made up of tissues and specialized white blood cells that recognize and attack foreign substances in the body

A macrophage is a white blood cell that destroys pathogens by engulfing and digesting them

An antibodies is a substance that stimulates a response by the immune system

Killer T cells attack infected body cells by attaching to specific antibodies

•A vaccination is a substance prepared from lived or strong pathogens that is introduced into the body to produce immunity.