Which classification includes both herbivorous and carnivorous animals?

The classification that includes both herbivorous and carnivorous animals is omnivore. This term refers to species that consume a variety of foods, including plants (herbs) and other animals (carnivorous diet). Omnivores display a flexible feeding strategy, which enables them to adapt to different food sources depending on availability. Because they can exploit a wide range of resources, omnivores often thrive in diverse environments and can adjust their diets according to seasonal changes or ecological dynamics.

The other classifications mentioned—viviparous, oviparous, and ovoviviparous—specifically relate to reproductive modes rather than dietary habits. Viviparous animals give live birth, oviparous animals lay eggs, and ovoviviparous animals produce eggs that hatch inside the body. Thus, these terms do not encompass dietary categories like herbivorous and carnivorous diets.