Match the following 1 Phagotrophs a Organisms using dissolved organic compounds for nutrition 2 Osmo...........

Environment and Ecology Concept of Ecosystems

Match the following:

1. Phagotrophs	a. Organisms using dissolved organic compounds for nutrition
2. Osmotrophs	b. Organisms feeding on dead materials of plants and animals.
3. Detritus	c. Organisms feeding on organisms or organic particles with digestion occurring within the body of the organism

Choose the correct alternative from given codes

1-a, 2-b and 3-c

1-c, 2-a and 3-b

1-c, 2-b and 3-c

1-a, 2-c and 3-b

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Explanation:

The term trophic is associated with food. Phagotrophism, osmotrophism and detritus are feeding habbit of various organisms. Phagotrophs are those organisms which feed on other organisms or organic particles by consuming them through ingestion and the digestion occurs only in the body of the organism e.g. human beings are phagotrophs. Osmotrophs are organisms that consume dissolved nutrients by the process of osmosis e.g. tapeworm. Finally, those organisms that feed on dead or decaying organism for nutrition are called detritus organisms. Therefore, answer B is justified.