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..
Rams. A male sheep is called a ram. Buck is the slang term for ram. A young male is called a ram lamb. In parts of the United Kingdom, a ram is called a tup and the mating season is called tupping. Wethers. A castrated male sheep is called a wether. Wethers are less aggressive than rams.George is a wether.ams. A male sheep is called a ram. Buck is the slang term for ram. A young male is called a ram lamb. In parts of the United Kingdom, a ram is called a tup and the mating season is called tupping. Wethers. A castrated male sheep is called a wether. Wethers are less aggressive than rams. George is a wether.