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..
A moose (Alces alces; called elk in Europe) is a large deer. Some authorities put the American moose in a different species, Alces americanus.A male moose is called a bull, a female moose is called a cow, and a young moose is called a calf.A group of moose is called a herd. The plural form of moose is moose.. male moose is called a bull, a female moose is called a cow, and a young moose is called a calf.