Which animal is the most important to the zoos ecosystem?

A. Elephant B. Giraffe C. Lion D. Zebra

The answer is A. Elephant.

Elephants are the most important animals to the zoo ecosystem because they are keystone species. Keystone species are species that have a disproportionately large impact on their ecosystem relative to their abundance. Elephants are keystone species because they are predators that help to control the populations of other animals in the ecosystem. Elephants eat a wide variety of plants, which helps to disperse seeds and create new habitats. They also eat insects and other invertebrates, which helps to control pests and diseases. Without elephants, the ecosystem would be out of balance and would not be able to function properly.