Question

1. one reason that identical twins might show slight differences at birth is they develop from different sperm one twins placenta may have provided slightly better nourishment one twin gestated much longer in the uterus than the other they did not develop from a single fertilized egg

Explanation:

Identical twins develop from a single fertilized egg and share the same genetic material. Differences at birth can be due to environmental - like placental factors. The placenta provides nourishment, and if one twin's placenta is more efficient, it can lead to slight differences. They develop from the same sperm - egg combination and usually have similar gestation times.

Answer:

one twin's placenta may have provided slightly better nourishment