Response to question 1: Communicable diseases and noncommunicable diseases are different because
Response to question 2: Poor hygiene can lead to these
diseases
because
Response to question 3:1 believe poor hygiene is/is not a symptom
because
Poor hygiene is a symptom
of these diseases

One spread and the other is not.

Explanation:

Communicable diseases and noncommunicable diseases are different  because communicable diseases spread from one person to another whereas non-communicable diseases are not spread from person to person.  Poor hygiene can lead to these  diseases  because of the present of pathogens that causes diseases.  I believe poor hygiene is a symptom  because it damages our health by causing diseases in the individual.

a progressive heart disease that affects pumping action of the heart muscles.