the developing embryo is nourished by yolk
Embryo gets its food via placenta .
food from the mother's yolk sac
A mammal embryo is the developing baby inside the mother.
The fetus inside of a mother's womb receives nourishment via the umbilical cord from the food the mother ingests.
In mammals, the embryo develops with in the specialised part of the oviduct .
The mother does. The embryo attaches to the uterine lining (called implantation) then secretes an enzyme to breakdown the cells of the lining as it burrows into the uterus. Maternal uterine cells then develop and surround the entire embryo, soon maternal blood vessels unite with the embryo to nourish it and remove waste products. This occurs about one week after fertilization and will provide nourishment throughout the first trimester until the embryo reaches the fetal stage at which time the placenta takes over through the umbilical cord.
the specie being created in the embryo get nutrition from the mother. so if the mother is healthy then the baby inside the embryo will also be healthy, it is protected, immunity will be well establish.
Because of the difference of the blood type between the mother and child.
After about a week from conception the zygote consists of over 100 cells. It then separates into two distinct mases. The outer cells form a shell that will become the placenta and the inner cells will become the embryo. First the outer cells must implant or embed themselves in the wall of the uterus. This occurs at about 10 days after conception. If implantation occurs the cells will grow and become an embryo and placenta. An umbilical cord forms and connects to the embryo's stomach and placenta so the embryo can get nourishment.
In a way, you could say "both inside and outside". The egg is produced and fertilized inside the mother. She lays the egg and incubates it so the embryo grows outside the mother and develops into the hatchling hummingbird.
No... the developing foetus generates enzymes in the mother's bloodstream - which forces her body to nourish the embryo - at the expense of the mother's calorie intake. Basically - it 'forces' the mother's body to divert nourishment from her own food intake - to feed the unborn baby first.
In the egg, and if the species gives birth to live young, in the egg which rests inside the mother's body.