The disease that is caused by a microbe belonging to the class Apicomplexa is

Explanation

Apicomplexa is a class of protozoan parasites known to cause several diseases in humans and animals. The most notable disease caused by a member of this class is malaria, which is transmitted to humans through the bite of infected female Anopheles mosquitoes. The causative agents of malaria are Plasmodium species, which are obligate intracellular parasites belonging to Apicomplexa. In contrast, cholera is caused by a bacterium, dysentery can be bacterial or amoebic, and sleeping sickness is caused by a different class of protozoa. Understanding the classification of microbes helps in identifying the diseases they cause.