True. Bacteria, viruses, fungi, and protozoans can all cause different diseases. These microorganisms have the ability to invade the human body and disrupt normal bodily functions, leading to the development of various illnesses. Bacteria are single-celled organisms that can cause infections such as strep throat, urinary tract infections, and pneumonia. Viruses are tiny infectious particles that require a host cell to replicate and can cause diseases such as the common cold, flu, and HIV/AIDS. Fungi, including molds and yeasts, can cause fungal infections like athletes foot and yeast infections. Protozoans are single-celled organisms that can cause diseases such as malaria and amoebic dysentery. Therefore, it is important to take preventive measures and seek appropriate treatment to avoid and manage these diseases caused by microorganisms.
