They help an environment because they create an ecosystem allowing animals to thrive and live a lifecycle with the resources they need.
Answer: sunlight.
Explanation: When trying to establish the level or extent of correlation or relationship which exists between two variables, the variables are classed as independent and dependent variables. The independent variable is referred to as the variable which causes a change in the value of the other variable (dependent variable). It is also known as the explanatory or predictor variable as it lead to changes in the dependent or predicted variable. In the scenario above, the independent variable is sunlight whose impact leads to changes in the growth level of the plant.
The producers at the beginning of the Earth's food chain are plants.
Correct me if I'm wrong but I'm sure the answer is C because according to the data each herbivore has a larger digestive system
