The organisms A, B and C can obtain their food in three different ways. Organism A derives its food from the body of another living organism which is called its D, without killing it. The organism B takes in the solid food by the process of ingestion, digests a part of this food and throws out undigested food in the process called E. The organism C obtains its food from dead and decaying plants.

(a) What is the mode of nutrition of


(i) organism A


(ii) organism B, and


(iii) organism C ?


(b) What is the organism like D called ?


(c) Name the process E.


(d) Give one example each of organisms like (i) A (ii) B, and (ii) C.


(e) What is the general name of three modes of nutrition exhibited by organisms A, B and C ?

(a)

(i) The mode of nutrition of organism A is parasitic nutrition.


(ii) The mode of nutrition of organism B is holozoic nutrition.


(iii) The mode of nutrition of organism C is saprophytic nutrition


(b) The organism D is called host of organism A.


(c) The process by which undigested food is thrown out of the body is known as egestion (E).


(d) (i) Plasmodium (ii) Amoeba (iii) Fungi


(e) Heterotrophic nutrition


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