PLEASE HELP ITS DUE SOON

If john has 100 family members 50%of them have been a car accident. 30% have had cancer how many of them are healthy

When studying heredity, what is the relationship of dna based and traits? super urgent !

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.