YES
no he didnt
The death of an identical twin in the womb may be caused by developmental or genetic defects in both members of the twin pair, but one twin fares rather better than the other and makes it to birth alive, as a womb twin survivor. The death of a fraternal womb twin in the womb may be caused by developmental anomalies/genetic defects in the womb twin while the womb twin survivor is developing normally and does not share the same genes. After one womb twin dies later in the pregnancy and there is one placenta, or the two placentas have fused, there is a risk of twin embolisation syndrome in the womb twin survivor, which can cause brain damage to the survivor if delivery is delayed. To avoid this risk, the premature birth of the survivor is considered an appropriate solution. In short, there is a slight possibility of damage to the survivor, but the loss of a womb twin is very common, affecting at least 10% of pregnancies, while the birth of a child with defects is relatively rare.
I don't think you would because I think that someones personality, does not come from gens. If the twin dies in the womb you wont know their personality.
Womb
Yes, that is very common.
In humans the answer is absolutely not, although some weird things can happen like conjoined twins, or one twin dying early on and the other growing and absorbing it, however eating does not happen. Food for babies in the womb is supplied directly from the mother to the child via the umbilical cord, therefore the fetus has no requirement to eat as you and I do. Interesting fact some species of shark do indeed have young that eat their smaller, weaker siblings while still in the womb. Cool, huh?
Womb.
yes. It has been know to happen. One twin doesn't thrive and ends up dieing in the womb.
Tia and Tamera Mowry are twin sisters. They met in the womb.
Where one cell splits into 2 or 3 durning the early age of pregnancy
When my wife was pregnant, I learned that in a normal pregnancy, the baby does not have a bowel movement while in the womb, but they do urinate while in the womb.