Independent variable: The difference in the amount of water the plants are fed. Dependant variable: the health of the plants . Control variable: temperature, amount of sunshine, type of plant amount of co2,
Outputs : Oxygen
Inputs: Sunlight;Carbon dioxide;Water
Answer:
or just submit it cuz i don't think middle school matters that much heheheheehhdk c kv n
The presented picture shows 4 trophic levels of the ecosystem.
The first level is made out of primary producers, plants. The second level is made out of herbivores that feed on the plants. The third level is made out of predators that eat herbivores.
The fourth trophic level is made out carnivores that eat other carnivores.
In our case, the only organism belonging to the fourth trophic level is the wolf.
