The African Savanna has many living organisms such as the Lion, Cheetah, Gazelle, Zebra and the Red Oat Grass. All these organisms have an important task in this Ecosystem.
The Red Oat Grass is a Autotroph that gets it's energy directly and the Lion, cheetah, zebra and the gazelle all receive it's energy indirectly.The grass is important because without the grass it wouldn't be able to feed the herbivores and the food web wouldn't be the same. Photosynthesis Equation: 6CO2+6H20-----C6H1206+6CO2
With the absence of grass, the savanna wouldn't be the same. If the herbivores cant eat the grass they will die, once the herbivores die the predators will have no food and will die as well.