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प्रश्न
Why do organisms need to take food?
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उत्तर
Food is needed by all organisms for many purposes:
- The main function of food is to help in growth.
- Food provides energy for movements such as running, walking or raising our arms.
- Food is also needed for replacement and repairing damaged parts of the body.
- Food gives us resistance to fight against diseases and protects us from infections.
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संबंधित प्रश्न
The plant which traps and feeds on insects is ______.
What is the mode of nutrition in fungi?
What moves the food in the digestive organs?
What are the different modes of nutrition? Explain with one example of each mode of nutrition.
The organism having parasitic mode of nutrition is ______.
Which of the following is an incorrect statement?
In which of the following groups of organisms the food material is broken down outside the body and then absorbed?
| 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. |
- What is the mode of nutrition of (i) organism A (ii) organism B, and (iii) organism C?
- What is the organism like D called?
- Name the process E.
- Give one example each of organisms like (i) A (ii) B, and (iii) C.
- What is the general name of three modes of nutrition exhibited by organisms A, B and C?
Match the organisms given in Column I with their mode of nutrition given in Column II.
| Column 1 | Column II | ||
| (a) | Mango tree | (i) | Insectivorous plant |
| (b) | Mushroom | (ii) | Heterotroph |
| (c) | Pitcher plant | (iii) | Autotroph |
| (d) | Cuscuta | (iv) | Saprophyte |
| (e) | Elephant | (v) | Parasitic |
Can you give me a name?
Solve the following riddles by writing the name of the organism and its mode of nutrition. One riddle is solved to help you.
I live in water; people keep me in an aquarium and feed me. ______, ______
