Question

question 7
infectious causes of diseases or disorders are a result of ______.
○ physical damage to the body
○ microscopic living things such as bacteria and viruses
○ lack or excess of proper foods
○ exposure to harmful aspects of the environment

Explanation:

Infectious causes of diseases are due to pathogens, which are microscopic living entities like bacteria and viruses. Physical damage (first option) is non - infectious trauma - related. Lack/excess of proper foods (third option) relates to nutritional disorders. Exposure to harmful environment aspects (fourth option) can cause non - infectious issues like poisoning or radiation sickness. So the correct option is the one about microscopic living things like bacteria and viruses.

Answer:

microscopic living things such as bacteria and viruses (the second option among the given choices)