Question

What are cilia and flagellation? Write one similarity and one dissimiarity between the two of them.

Answer 1

The cells of ciliated epithelium have thread like protoplasmic projections called
$cilia$

Answer 2

Cilia and flagella are cell organelles that are structurally similar but are differentiated based on their function & length.

Similarity : Both are used for movement.

Dissimilarity : cilia are small as compared to flagella  & numerous in number, whereas flagella is larger in size as compared to flagella & usually 1 to 8 in number.

Example : cilia in paramecium and flagella in euglena.