The correct option is (C). The correct group is Cuscuta, ticks, lice, leeches, and tapeworm, as all are parasites that depend on other organisms for food. They exhibit the same heterotrophic parasitic mode of nutrition, deriving nourishment directly from their hosts.
Class 10 Science Sample Paper for half yearly Exam 2025-26
Half Yearly Exam Sample Paper 2025-26
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The correct answer is Cuscuta, ticks, lice, leeches, and tapeworm. All these organisms obtain food from other living beings, showing a parasitic mode of nutrition. Parasites absorb nutrients from the host’s body, harming it in the process. Cuscuta sucks nutrients from plants, while ticks, lice, leeches, and tapeworms live on or inside animals to absorb food. Unlike autotrophs, they cannot prepare their own food and depend entirely on their hosts for survival and nourishment. The correct option is (C).