Question
Distinguish between
Food chain and Food web.
Food chain and Food web.
| Food chain | Food web | |
| 1 | Food chain is single pathway of energy transfer from upper to lower. | Food web is made of several interconnecting pathways. |
| 2 | One individual occupies one trophic level at a time. | One individual occupies many trophic level at a time. |
| 3 | It decreases stability of the ecological system and less adaptive. | It increases stability of the ecological system and more adaptive. |
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| S. No. | Column I | S. No. | Column II |
| A. | Acrosome | 1. | Motility of sperm towards the egg. |
| B. | Head | 2. | Powerhouse of the sperm; contains a number of mitochondria. |
| C. | Tail | 3. | Contains the genetic material. |
| D. | Middle piece | 4. | Contains enzymes to dissolve egg envelopes. |