Q.

In which of the following groups of organisms, food material is broken down outside the body and absorbed

1 Mushroom, green plants, amoeba  
2 Yeast, mushroom, bread mould  
3 Paramecium, amoeba, cuscuta  
4 Cuscuta, lice, tapeworm  

Ans.

(2)

Yeast, mushrooms, and bread mould all exhibit a saprophytic mode of nutrition. They use digestive enzymes secreted outside their body to break down complex organic substances and absorb basic molecules as nutrition.