The term that can be used to describe evolution by natural selection is SCIENTIFIC THEORY.
Theory means "the best explanation so far."
Scientific theory is a work in progress. It is a well-substantiated explanation of some aspect of the natural world that is acquired through the scientific method, and repeatedly confirmed through observation and experimentation.
A mass movement is movements of masses of bodies of soil, bed rock, rock, debris, soil etc. which usually occur along steep-sided hills and mountains because of the pull of gravity
Unoxygenated blood from veins enters the right atrium then it goes down to the right ventricle then out through the pulmonary artery to the lungs where it becomes oxygenated blood which then enters the heart through the pulmonary veins and it goes to the left atrium and then is pumped down to the left ventricle and out through the aorta to the arteries where it travels to different organs and becomes deoxygenated and then the cycle repeats itself.
Medical terminology is to create a standardised language for medical professionals. This language helps medical staff communicate more efficiently and makes documentation easier. This enables staff to save time by ensuring they don’t have to explain complex medical condition in plain English and can focus on the treatment of patients. Medical terminology can look and sound complex, but it's important to be able to break words down and understand their roots, prefixes and suffixes to prevent any misunderstandings or errors.
