What scientists discovery spurred the rapid advancements in the field of genetics

Can someone give me one specific health problem (within unhealthy eating) and explain it. !

Which is an effective way to prevent bullying and harassment

Practice or pre-exercise theories of play pose the idea that a. play provides children with an opportunity to practice adult activities. b. play is necessary to reenergize human cognition. c. children have too much energy and play will rid them of that energy. d. children are the link between animals and human beings.