End of Year Science Human Body

How does HIV damage the immune system?

The control ceneter of a cell is the

Viruses can't be treated with the same medicines that cure the flu because they are nonliving

A disorder in which the immune system is overly sensitive to a substance not in the blood

The body's drainage system is a network of veinlike vessels called the ____________

How do breathing passages help keep pathogens out of your body?

For every ____________there are between 500 and 1,000 red blood cells

Most materials carried in blood travles in the __________

The ______________is the body's second line of defense.

A tissue that has the ability to contract is

__________is a complex tissue with 4 componenets plasma, red and white blood cells, & platelets

Skin, ears and kidneys are examples of