Mention the differences between food habits of organisms belonging to the first and third trophic level. Give one example of each of them.
First Trophic Level:
- The organisms of this trophic level are plants and are also called producers.
- They transform solar energy into chemical energy by photosynthesis.
e.g. : grass (all green plants).
Third Trophic Level: - The organisms of this trophic level are animals and are also called secondary consumers.
- They obtain chemical energy by eating other animals.
e.g. : all carnivores (like lion).