The cilia in paramecium are used for

Explanation

protection D) excretion Related Lesson: Human Locomotion | Animal Systems The correct answer is B. Explanation: Paramecium is a type of unicellular organism that has tiny hair-like structures called cilia on its surface. These cilia are used for various functions, such as movement, feeding, and sensing the environment. In this question, we are asked to identify the primary function of the cilia in paramecium. Option A suggests that the cilia are used for respiration, which is not correct. Paramecium obtains oxygen through its cell membrane and does not have specialized respiratory structures. Option B, which is the correct answer, suggests that the cilia are used for locomotion. This is true as the cilia beat in a coordinated manner to propel the organism through its environment. Option C suggests that the cilia are used for protection, which is not correct. Paramecium has other structures for defense, such as trichocysts, which are specialized organelles that can discharge a protective substance. Option D suggests that the cilia are used for excretion, which is not correct. Paramecium excretes waste through specialized structures called contractile vacuoles. Therefore, the correct answer is Option B, which states that the cilia in paramecium are used for locomotion.