Intracytoplasmic bacteria in enterocytes of the gastrointestinal tract are detected by . Question 4 options: poly-Ig receptor major basic protein MIC-A and MIC-B receptors for phosphoantigens NOD proteins

Asquirrel population lives in an area. over many years, a river in that area grows wider and stronger, eventually forming a canyon. the squirrel populations on the two sides of the canyon can no longer mate with each other and ultimately form distinct species. this is an example of