An exposure pathway-describes a unique mechanism by which an. individual or population is exposed to chemical or physical agents at or originating from. a site. Each exposure pathway includes a source or release from a source, an exposure. point, and an exposure route.
Terminology: Young cattle are called calves. A young male is called a bull calf; a young female before she has calved the second time is called a heifer (pronounced heffer). A young female that has had only one calf is sometimes called a first-calf heifer..
Â· just now. Report Abuse. An adult female bovine that has given birth is called a cow. A young female bovine that has not given birth is called a heifer. An adult female that has not given birth is often called a heiferette. An intact (not castrated) adult male is a bull. A castrated male is a steer.