MCQ
The energy which is utilized by the living world is primarily:
- AHeat energy
- BElectrical energy
- CLight energy
- DKinetic energy
Explanation:
Plants convert light energy from the sun into chemical energy (food) by the process of photosynthesis.
Animals eat plants and use that same chemical energy for all their activities.
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| Column-I | Column-II | ||
| (P) | Lichens | (i) | Parasitism |
| (Q) | Abingdon tortoise and goat | (ii) | Commensalism |
| (R) | Sea anemone and clown fish | (iii) | Competition |
| (S) | Human and liver fluke | (iv) | Mutualism |