They do not affect one another so True
Say no whenever you are offer alcohol, drugs, or tobacco.
Even when pressured a simply excuse is a better idea than ruining your life. You see many homeless people that still buy tobacco, drugs, or alcohol and no wonder they are homeless every dollar they get is spent on harmful substances. People use these products to wipe there worries away and do not think about the consequences of tomorrow.
Gangrene is definitely not a common symptom.
Diabetes are common in inheriting, it could be pass from one generation to another but Cancer is purely mutagenic disease, and happens in an individual.
In short, Your Answer would be False. They are not common Hereditary disease
Hope this helps!
I think it means pertaining to life of a living organism