Which of the Following Requires Another Living Host for Its

Question

Which of the following requires another living host for its continued existence?
A) Arthropod
B) Pathogen
C) Parasite
D) Bacterium

Accepted Answer

Parasites are organisms that live in or on another organism, called the host, and rely on the host for its continued existence. Therefore, parasites require another living host for their survival. Arthropods can survive independently, and some bacteria can also survive without a host. Pathogens, such as viruses, can cause disease in a host but they do not necessarily require a host for their survival.