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In which of the following groups of organisms, food material is broken down outside the body and absorbed?
(A) Mushroom, green plants, Amoeba
(B) Yeast, mushroom, bread mould
(C) Paramecium, Amoeba, Cuscuta
(D) Cuscuta, lice, tapeworm
Answer
Among the given organisms,
- Green plants are autotrophs and hence can synthesize their own food.
- Cuscuta, lice and tapeworms are parasites. They live in/outside the body of an organism called a host and derive nutrition from it.
- Paramoecium is a unicellular heterotroph , i.e. it depends on external sources for its nutrition.
-
Yeast, mushroom and bread mould
are
saprophytes.
They break down the food outside their body into simpler substances and then absorb it.
So, the correct answer is (b)
