Question
Which of the following is true about the digestion
process of the Paramecium ? I. Food is taken in at a specific spot. II. Food is moved to this spot by the movement of cilia. III. Cilia are present only at the front and back of the organism.Solution
I and II are correct. However, III is incorrect. Cilia are microscopic, hair-like structures that extend outward from the surface of the organism. Paramecium feeds on microorganisms like bacteria, algae, and yeasts. The paramecium uses its cilia to sweep the food along with some water into the cell mouth after it falls into the oral groove. Cilia cover the entire surface of the cell. Hence, option C is correct.
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In which ecosystem is the biomass of primary consumers greater than that of producers?
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