Question

1. what makes communicable diseases different from other types of diseases? 2. would it be true or false to say that all bacteria are harmful? explain. 3. choose two pathogens and explain the similarities and differences between them. 4. during which stage of infection do signs and symptoms arise? 5. which method of disease transmission explains why you can get sick from eating spoiled food?

Explanation:

1.

Communicable diseases are caused by pathogens like viruses, bacteria, etc. and can spread from one person to another. Non - communicable diseases are not transmissible in this way and are often due to genetic, lifestyle, or environmental factors not involving infectious agents.

Not all bacteria are harmful. Some bacteria are beneficial, like those in the gut that aid in digestion, or those used in food production (e.g., yogurt - making bacteria).

Let's take bacteria and viruses as two pathogens. Similarities: Both can cause diseases. Differences: Bacteria are single - celled organisms that can live independently in some cases, while viruses are non - cellular and need a host cell to replicate.

Answer:

Communicable diseases can spread from one person to another through various means (e.g., airborne, contact, etc.) due to the presence of infectious pathogens, while non - communicable diseases do not spread in this manner and have different causes such as genetic, lifestyle, or environmental factors not related to infectious agents.

2.