Obviously, the same problem extends into all other aspects of lodging with companion(s). Just as common is traveler's diarrhea, because it disrupts stools and leads to the inevitable constipation; Cause-and-effect: Most people believe traveler's diarrhea is caused by contaminated food or water.
variation in a characteristic that is a result of genetic inheritance from the parents is called inherited variation children usually look a little like their father and a little like their mother but they will not be identical to either of their parents
1 Heredity: Some of these variations will be inherited by offspring. 2  Overproduction: More offspring are produced than can survive. 3  Limited resources: Survival and reproduction are determined by competition for limited resources such as food, habitat, or mates.