Explain the role of cardiovascular and respiratory systems have on one's muscular endurance abilities

Taking a foil acid supplement during childhood can prevent illness

What should be changed to make the following sentence true? "the stress model suggests that people with a predisposition for a disorder are more likely to develop the disorder when faced with stress."

Viral infections in plants ) can be controlled with antibioticsb) can spread within a plant via plasmodesmata c) have little effect on plant growthd) are not spread by animals