D. the balls were dropped from different heights
Answer:
Seven-year-old Sam can't sit still in class and is often disruptive. His teacher has noticed that he has difficulty reading and playing with other children. She knows that his mother has a drinking problem. Sam could be displaying effects of behavioral <u><em>teratogens</em></u> that his mother ingested while he was in the womb..
Explanation:
Teratogens are a medical specialty dedicated to the study of anomalies and malformations linked to a disturbance of embryonic or fetal development. In Sam's case, the teratogens would be caused by her mother's alcohol ingesting during the gestation. This would cause Sam's problematic behavior.
Logrolling, which by definition is “the exchange of support or favors, especially by legislators for mutual political gain as by voting for each other's bills.”
The definition of sport is activity through physical exertion.