Explanation:
During implantation, the trophoblast differentiates into two distinct layers: the inner cytotrophoblast, and the outer syncytiotrophoblast.
Carcinogens is a substance capable of causing cancer in living tissue.
Answer is: cancer causing agents
It encourages children to follow these steps at home and in the future, leading to a healthier lifestyle.
Blunt force trauma resulting to cracks or breaks to the bone where ever it was.