At times hyenas feed on remains of animals killed by other animals. At other times,...

Explanation

Hyenas are animals that can feed on the remains of other animals that have been killed by other animals or they can also kill animals for food. This means that they can be described as animals that scavenge, which means they feed on dead animals, and as predators, which means they hunt and kill other animals for food. Therefore, the correct answer to this question is option C, which describes hyenas as scavengers and predators. It is important to note that scavengers play an important role in the ecosystem as they help to clean up dead animals and recycle nutrients back into the environment. Predators, on the other hand, are also important as they help to control populations of other animals and maintain a balance in the ecosystem. In contrast, herbivores are animals that feed on plants, while parasites are organisms that live on or in another organism and feed off of it, often causing harm to the host. Therefore, options A and D, which describe hyenas as herbivores, are incorrect. Option B, which describes hyenas as scavengers and parasites, is also incorrect as hyenas are not parasites. Option E, which describes hyenas as herbivores and parasites, is also incorrect.