Exposure to toxins during early stages of pregnancy is more likely to cause birth defects than exposure in late pregnancy because
1
essential organs form during early development
2.
the uterus provides more protection in late pregnancy
3.
the placenta forms during late pregnancy
4
meiosis occurs rapidly during early development
Submit Answer
Harmful chemicals (toxins) cause the most disease when they are present during fetal development, because organ systems are being developed and the rate of growth is very fast.
