Ace Your Animal Behavior College Externship 2026 – Unleash Your Inner Animal Guru!

The root tars(o) refers to the hind foot, specifically the ankle region. In anatomy, the tarsus is the set of bones that form the hind foot and ankle, including bones like the talus and calcaneus. So terms built with this root describe structures or conditions related to that part of the body. The other options don’t fit because they relate to different concepts: chest points to the thorax, across would be tied to prefixes meaning “through” or “across,” and clot-related terms use roots like thromb/o or coagul/o.