A unicellular organism has a definite shape, takes food in at a specific spot, and uses hair like cilia to move food to that spot. Identify the organism,

Correct option is A

The correct answer is (A) Paramecium.

Explanation:
Paramecium is a unicellular organism that has a definite shape, takes food at a specific spot (the oral groove), and uses cilia to move food towards the mouth.

Incorrect Options Explanations:

• (B) Lice: Lice are multicellular parasites, not unicellular organisms.
• (C) Euglena: Euglena is unicellular but moves using a flagellum and does not have cilia for food movement.
• (D) Plasmodium: Plasmodium is a parasite causing malaria, not a ciliated unicellular organism.

Information Booster:

• Paramecium: A ciliated protozoan commonly found in freshwater.
• Movement and Feeding: Cilia help in movement and directing food to the oral groove.
• Kingdom: Protista