A) Tissue system
B) Root system
C) Shoot system
D) Ecosystem
Correct Answer: D
Solution :
In ecology, the trophic level is the position that an organism occupies in a food chain. Trophic levels are the feeding position in a food chain such as primary producers, herbivore. primary carnivore, etc. Green plants form the first trophic level, the producers. Herbivores form the second trophic level, while carnivores form the third and even the fourth trophic levels.You need to login to perform this action.
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