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..
Male moose are called bulls, female moose are cows and young moose are known as calves. Cows usually have about 1-2 calves at a time. The calves are born in May and June and weigh between 25-34 pounds. Unlike human babies calves can walk on their first day of birth.