Jill is 3 years old. she is hyperactive and learning-disabled. her doctor suggests that jill's problems could be the result of prenatal exposure to though he stresses that the link is not straightforward at this time.

Teratogens.

Explanation:

A teratogen is an agent that disturbs, during pregnancy, the development of the fetus or the embryo. Given that, in the exercise, the doctor suggests that the problem may have been a prenatal exposure, the best guess is a teratogen, which might include any maternal infections, drugs, chemicals or, in rare cases, even radiation. There are many things a teratogen might cause in later stages, such as Jill's problems of learning disability.

ne pare rău, dar când mi-am căutat întrebarea, doar avioanele au apărut .. deci, ar putea fi răspunsul, sau ar putea fi baloane cu aer cald, deoarece acestea pot conta și ca ambarcațiunile de aer, dar nu sunt complet sigur de asta. a fost doar o presupunere, sper că am ajutat, îmi pare rău dacă nu am făcut-o. de asemenea, folosesc traducerea google, pentru a traduce ceea ce spun în engleză, așa că îmi pare rău dacă gramatica sau chiar limba nu este corectă

the earthquake in haiti was a magnitude of 7.0 according to the u.s geological survey yet the smaller earthquake in haiti killed more than 200,000 and left more than 1.2 million people homeless. the chile earthquake was a magnitude of 8.8 and 500 times more stronger but chile's earthquake only injured 712 people.