Up to 8 weeks after fertilization embryo is present which is unborn baby in early stages while foetus is an unborn baby in uterus in later stages of development (after 8 weeks till birth).
An unborn baby that is less than 8 weeks old, is an embryo, after this it is classified as a foetus.
so one answer it.
Well, embryo is the developing stage of a zygote(fertilised egg) when it repeatedly divides itself into a ball of cells to form the different tissues and then the organs of the baby. The stage when the hands, legs , and different body parts of the baby can be identified is termed as the foetus. So, in accordance with your question the stage of the foetus is more developed. However the foetus is not the fully developed stage. The foetus once completely developed , the baby is born.
As on December 5th 2009 the foetus is 10 weeks.
A normal heartbeat of a fetus at 6-7 weeks would be 90-110 beats per minute.
Approximat age of the foetus is 21 weeks as at November 27th
As of 28th, April, 2010, the approximate age of the foetus is 22 weeks.
A Foetus is formed by the growth and development of an embryo. A Foetus is an unborn baby in the uterus in the later stages of development (after 8 weeks till birth). A Foetus is also multicellular. The body features of developing baby can be identified.
The foetus in embedded in fluid called amniotic fluid. Some times the foetus takes a breath in that fluid, just before the delivery. The result is disastrous. If the foetus is born with the fluid in the lungs, it is going to die in most of the cases. The foetus is getting all the oxygen and the nutrition from the mother. This is supplied through the placenta. So the lungs of the foetus are at rest in the womb of the mother.
Foetus. You call it as an embryo in first 8 weeks.
The approximate age of the foetus is 26 weeks as of November 27th 2009
sextuplets are when a women has 6 foetus (babies) in her womb at a time.