Which group of organisms includes mastigophora, sarcodina, ciliophora, and sporozoa?

The group of organisms that includes mastigophora, sarcodina, ciliophora, and sporozoa is protozoa. Protozoa are unicellular eukaryotic organisms that can be found in various habitats, including freshwater, saltwater, and soil. They are known for their diverse modes of locomotion and can be classified into several groups based on their movement and feeding mechanisms.

Mastigophora, commonly known as flagellates, utilize flagella for movement. Sarcodina, also referred to as amoeboids, move and feed using pseudopodia. Ciliophora are characterized by the presence of cilia, which they use for both locomotion and feeding. Lastly, sporozoa are typically non-motile and reproduce through spore formation. Each of these groups represents a different aspect of the diversity found within protozoa, showcasing their varied forms and life cycles.

Other choices, such as bacteria and viruses, refer to completely different groups of organisms. Bacteria are prokaryotic, unicellular organisms that lack a defined nucleus, while viruses are acellular pathogens that require a host organism to reproduce. Helminths, on the other hand, are multicellular parasitic