Which woman is at the greatest risk of not developing a healthy placenta? group of answer choices a. a woman who is 30 pounds overweight b. a woman with anorexia nervosa who is restricting her food intake c. a woman who eats a balanced vegetarian diet an underweight woman who has increased her food intake to gain weight

Pj conducts an experimental study on the effects of soft music during high stakes science testing. he randomly assigns students at the school. in one condition he does not provide music for testing while in the other group he does provide the music. he administers a pretest at the beginning of the year and a posttest at the end of the year. pj’s design is best described as a: a.static group comparisonb. pretest-posttest control group designc.control-group-time-series designd. nonrandomized control-group pretest-posttest design