The variable that researchers manipulate is the independent variable.
The reason for this is because in experiments different manipulations are often introduced. The sole purpose of these manipulations is to see whether they will affect our independent variable and if they will change its value.
Pathophysiology is a sub discipline of physiology that deals with the study of mechanisms of disease. Pathology describes the abnormal or undesired conditions while pathophysiology entails explaining the physiological processes or mechanisms where such conditions develop and progress. It is a physiology of abnormal state that is normally followed by a disease or a syndrome.
The outer covering of a reptile egg, may be flexible, calcified eggshells, while there are some reptiles that has hard eggs. A snake lays a kind of reptile egg that is leathery. A reptile egg may differ from one another, depending on the species.
Diffusion is important to organisms because it is the process by which useful molecules enter the body cellsand waste products are removed. Digested food molecules (amino acids, glucose) move down a concentration gradient from the intestine to the blood.
This formatting of rock is called a sedimentary rock
