Concepts and terms: life status refers to one"s physical, psychological and behavioral attributes, as well as to talents and abilities. Phenotype: observable physical traits, may be used to draw inferences about the genotype: phenotype is the observable result of interaction between the genotype and the environment. Learning: changes associated with specific practice or instruction. Developmental theories: different theories about human growth and development. Preformationist perspective (had an early following: the human organism is preformed before birth; the foundation elements of human behavior are intact from the beginning and do. Not qualitatively develop or change during life: denied importance of growth and development, this theory is similar to homuncular theory of human reproduction: a completely formed, tiny person existed in the sperm. Predeterministic perspective minimal: similar to that of the preformationists- outcome of both theories essentially the same: environmental influence was thought to be. Growth patterns are viewed as innate or internally regulated: however some significant differences between two theoretical positions.