6. The scientific study of ways in which people change from conception to death is? a) Growth b) Maturity c)Retardation d) Development 7. Which developmental stage is the health of a pregnant mother of primary concern? a) Infancy b) Prenatal c) Late adulthood d) Early adulthood 8. Which of the following is not true about heredity? a) Heredity has no effect on expression of traits b) Twin studies are traditionally used to study genes c) Change is possible even for genetically based traits d) None of the above 9. The period between childhood and adulthood that includes physical, social, emotional and mental changes is called: a) death b) maturity c) adolescence d) early adulthood 10. The ability to deal with hypothetical concepts emerges at which stage of development? a) Sensorimotor stage b) Preoperational stage c) Concrete operational stage d) Formal operational stage

6. The correct answer is d) Development. Development refers to the scientific study of how people change from conception to death, encompassing physical, cognitive, and socio-emotional changes throughout the lifespan.<br /><br />7. The correct answer is b) Prenatal. During the prenatal stage, the health of the pregnant mother is of primary concern as it directly impacts the development of the fetus.<br /><br />8. The correct answer is a) Heredity has no effect on expression of traits. This statement is not true about heredity. Heredity plays a significant role in the expression of traits, as it involves the transmission of genetic information from parents to offspring.<br /><br />9. The correct answer is c) Adolescence. Adolescence is the period between childhood and adulthood characterized by physical, social, emotional, and mental changes.<br /><br />10. The correct answer is d) Formal operational stage. The ability to deal with hypothetical concepts emerges during the formal operational stage of development, which typically begins around age 11 and continues into adulthood.