Q. In a food chain, autotrophs are found at:

 1743  181 BHUBHU 2002 Report Error

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.