Final answer:
The subject of this question is Biology because the question pertains to the study of organisms and their interactions within ecosystems. The cheetah's diet and the interdependence between species in an ecosystem are relevant topics discussed in the answer.
Step-by-step explanation:
The subject of this question is Biology because it pertains to the study of organisms, including their behavior, habitats, and interactions within ecosystems.
The cheetah, as stated in the question, eats a variety of animals in its habitat, such as gazelles, wildebeest calves, impalas, and smaller hoofed animals. They may also eat rabbits, birds, hares, antelopes, and warthogs. These prey animals form part of the cheetah's diet and are necessary for its survival and energy intake in the food chain.
The information provided about the zebra and wildebeest grazing different parts of the same grass highlights the interdependence between species in an ecosystem, which is a key concept in biology.