Gas exchange is the process by which oxygen and carbon dioxide (the respiratory gases) move in opposite directions across an organism's respiratory membranes, between the air or water of the external environment and the body fluids of the internal environment.
niche. The function or position of a species within an ecological community. A species's niche includes the physical environment to which it has become adapted as well as its role as producer and consumer of food resources.
Soft Skills Definition: What are Soft Skills, Examples of Soft Skills. Soft skills â if you arenât familiar with them, you should be. Your soft skills are as important to your success and the success of a company as your hard skills. This is particularly true in companies where face to face customer interaction occurs.