A class of ciliated protozoans that have cilia arranged in bands and covering different parts of the body for movement and feeding.
Latin/Greek plural form from 'heterotrich,' with the suffix '-a' making it a taxonomic class name used in biological classification systems.
When scientists first classified these creatures under microscopes in the 1800s, they noticed the cilia came in multiple styles—hence the name 'different-haired'—making heterotrichs the hipsters of the microscopic world!
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