Microorganisms capable of causing disease are called what?

• A. Viruses
• B. Pathogens
• C. Bacteria
• D. Anemones

Answer: (B)

Microorganisms capable of causing disease are known as pathogens. This term encompasses a wide range of infectious agents, including bacteria, viruses, fungi, and parasites, that can lead to illnesses in hosts. The defining characteristic of pathogens is their ability to invade and multiply within host organisms, often eliciting an immune response that can result in disease symptoms.

While specific types of pathogens such as viruses and bacteria are included within this category, the term "pathogens" provides a broader classification that captures all microorganisms with disease-causing potential. The other options represent specific types of microorganisms or organisms; for example, viruses and bacteria are types of pathogens but do not encompass all disease-causing agents, while anemones are marine animals and not associated with causing disease. Understanding the broad nature of pathogens is crucial in fields like microbiology and public health, as it informs prevention and treatment strategies for infectious diseases.