A) trophic level 1st
B) trophic level 2nd
C) trophic level 3rd
D) highest trophic level
Correct Answer: A
Solution :
Trophic levels are steps or division of food chain characterized by specific method of obtaining food.| Trophic level | Organism |
| 1st trophic level | Producers, autotrophs e.g., Green plants. |
| 2nd trophic level | Primary consumers or herbivores, e.g., Rat, rabbit |
| 3rd trophic level | Primary carnivores or secondary consumers e.g., Frog. |
| Highest trophic level | Top carnivores e.g., Lion. |
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