PATHOLOGY

Detailed explanation-1: -The hair-like structures that helps protozoans in movement are called cilia.

Detailed explanation-2: -Paramecia are completely covered with cilia (fine hairlike filaments) that beat rhythmically to propel them and to direct bacteria and other food particles into their mouths. On the ventral surface an oral groove runs diagonally posterior to the mouth and gullet.

Detailed explanation-3: -The bronchus in the lungs are lined with hair-like projections called cilia that move microbes and debris up and out of the airways. Scattered throughout the cilia are goblet cells that secrete mucus which helps protect the lining of the bronchus and trap microorganisms.

Detailed explanation-4: -A general feature of the Class Ciliatea is the presence of hairlike struc-tures called cilia. The cilia, or compound ciliary structures, serve as organelles of locomotion or feeding or both.