Question

question 7 (1 point)
a disease that is spread from one living organism to another is called a(n) communicable disease
true
false

question 8 (1 point)
common pathogens include flies, mosquitoes, and ticks.
true
false

question 9 (1 point)
pneumonia can be caused by either a virus or by bacteria.
true
false

Explanation:

• Question 7:

A communicable disease is defined as a disease that can be transmitted from one living organism to another. So the statement is correct.

• Question 8:

Pathogens are microorganisms (such as bacteria, viruses, fungi) that cause disease. Flies, mosquitoes, and ticks are vectors (carriers) that can transmit pathogens, but they are not pathogens themselves. So the statement is incorrect.

• Question 9:

Pneumonia can be caused by viruses (e.g., respiratory syncytial virus) or bacteria (e.g., Streptococcus pneumoniae). So the statement is correct.

Answer:

Question 7: True
Question 8: False
Question 9: True