Unicellular protists that are free-living or parasitic, move...

Unicellular protists that are free-living or parasitic, move by means of flagella, and do not photosynthesize are called
(a) euglenoids (b) dinoflagellates (c) myxamoebas
(d) zooflagellates (e) apicomplexans

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Key Concepts

Protist Classification

Protist classification involves organizing these diverse organisms based on criteria such as cellular structure, locomotion methods, and nutritional strategies. This systematic categorization helps in understanding the evolutionary relationships and functional adaptations among various protist groups.

Unicellular Protists

Unicellular protists are single-celled eukaryotes that can exhibit a wide range of lifestyles, including both free-living and parasitic forms. Their simplicity in cellular organization makes them key subjects in studies of cellular biology and evolutionary relationships among eukaryotes.

Flagellar Locomotion

Flagellar locomotion refers to the movement mechanism employed by some cells using flagella, which are whip-like appendages. This form of motility is crucial for accessing nutrients, avoiding predators, and navigating through various environmental conditions, and is a defining characteristic for certain groups of protists.

Heterotrophic Nutrition

Heterotrophic nutrition describes the process by which organisms obtain energy and carbon by consuming organic matter rather than producing it internally through photosynthesis. This mode of nutrition is typical of many protists that rely on organic substrates, whether as free-living entities or as parasites.

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