Cilia and Flagella

This viddescribes the characteristics of cilia and flagella. Cilia and flagella aid in the locomotion of single-celled eukaryotes and individual organisms. In the case of multicellular organisms, cilia help fluid movement. Cilia are present in the respiratory tract of humans and protect the lungs from dust, smog, and harmful microorganisms. Flagella are long, threadlike structures that enable bacteria, protozoa, and spermatozoa to swim.

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