Growth and Development Through the Lifespan

ability activities adolescents adoption adults aggression alcohol answer appear associated attachment baby become begin behavior believed birth blood body boys brain called cause cells changes characteristics child childhood chromosomes cognitive developmental difficulty disease early effects emotional environment especially example experience explain factors feelings female friends functioning gender genes gestational age girls growth head heart human identify identity Implications important increase individuals infants influence intelligence interactions lack language lead less lives major male mature means mental months moral mother objects occurs operational organize parents peers period person physical play poor positive possible premature preschool problems programs refers reflexes relationships response risk role sense sexual skills social stage structure task theory thinking thought tion understand usually weeks weight women young