Final answer:
Ungulates are herbivorous hoofed mammals, like giraffes and deer, with adaptations for processing plant materials. Humans are heterotrophs and omnivores, feeding on both plant and animal sources, and are often tertiary consumers.
Step-by-step explanation:
Ungulates are a diverse group of large mammals that are primarily characterized by having hooves. These animals are typically herbivores, which means their primary food source is plant-based. Ungulates include creatures such as giraffes, deer, horses, and rhinos. They have various adaptations that allow them to efficiently process plant material, such as specialized teeth and digestive systems. Some ungulates, like deer and antelope, are also prey for larger predators, so they must be vigilant to survive. As for humans, they are classified as heterotrophs because they cannot produce their own food and must consume other organisms to obtain energy. Humans are also generally omnivores, meaning they consume both plant and animal materials, and can be considered as tertiary consumers since they often feed at the top of the food chain.