Development begins at conception from a parent sex cell which is formed by the union of a male sperm cell and a female ovum forming a zygote which contains ___________chromosomes Posted on:
__________ defense mechanism occurs as an individual ascribes his unacceptable behaviour to others, to justify self defense Posted on:
____________ stage refers to the stage when the focus of pleasurable body zone shifts from mouth to anus, rectum and bladder Posted on:
____________ can be defined as any relatively permanent change in behviour which occurs as a result of practice or experience Posted on:
