4 pts
Question 15
AL
Jonas Salk was awarded the Nobel Prize for discovering a way to vaccinate against
polio in the United States in the 1950's. This allowed millions of school-age children to
avoid crippling disease, and to swim during summer again, as polio was often spread in
public swimming areas before. Which statement MOST closely describes how the
polio vaccine works?
It triggers the immune system to produce antibodies to fight the disease causing agent.
It attacks the disease causing agents as soon as it enters the body, preventing illness.
It allows the blood to filter out the disease-causing agent.
It prevents the disease-causing agent from entering the body,

The polio vaccine works as :

It triggers the immune system to produce antibodies to fight the disease causing agent.

Option 1 is the correct answer.

Explanation:

Polio vaccine is attenuated disease causing virus which helps in the production of antibodies to fight the disease. The immunity for polio gets develop in the individual given polio vaccines.

Jonas Salk discovered the the vaccine for polio by using inactivated polio causing virus.

The polio vaccine produces antibodies in the blood when interaction with polio virus is there.

The paralysis of the legs can be prevented as polio virus do not reach the nervous system and spinal cord of the individual.

There are two types of polio vaccines given across the globe:

oral polio vaccine and inactivated polio vaccine (via injection)

to figure the total magnification of an image that you are viewing through the microscope is really quite simple. to get the total magnification take the power of the objective (4x, 10x, 40x) and multiply by the power of the eyepiece, (usually 10x)