In the 1880’s, Louis Pasteur developed a method of weakening viruses. The weakened viruses could be injected into healthy individuals. How is this method effective in fighting viral diseases?

Control variable- changedependant variable- stays the samechanging- food itemsdependant- presences of proteins

Not sure if you have any answer choices to pick. however i'd say its the intertidal zone

Obtaining enough restrationale: as the blood volume doubles during pregnancy, heart failure can occur. the pregnant woman needs to obtain adequate rest to prevent overworking the heart. fluid may need to be restricted.

Answer///sporadic;