The disease is a condition of disturbed functioning of the body caused by infection, defective diet, heredity, environment, or deprived condition of the brain. Health is a state of complete physical, mental, and social well-being. Health is described as the state of complete physical,…

Introduction In biology, any differences between cells, individual organisms, or groups of organisms of any species either by genetic difference or by the effect of environmental factors on the expression of the genetic potential, are termed as variations. Variations may…