Answer
Possible lurking variables:
- The quality and the amount of food the women ate during the pregnancy.
- The genetics of parents.
Work Step by Step
Good quality food can cause one to have babies with a higher birth weight.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.