Embryos normally develop in the uterus of the female reproductive system. The uterus provides a safe and nourishing environment for the embryo to grow and develop during gestation.
The embryo develops not in the wombYour species may vary. Mammalian embryos develop within the uterus of their mothers. Bird and reptile embryos develop inside eggs. Some oviparous embryos develop inside eggs inside their mothers. In some fish and seahorses, the eggs laid by the female, but carried by the males in a pouch and the embryos develop within him.
Yes, human embryos do have tails during early development, but they typically disappear as the embryo continues to grow and develop.
Gestation.
No, it is not possible for a fetus with a tail to develop normally during pregnancy.
No, lampreys do not have a placenta. They are a type of jawless fish that reproduce by laying eggs, and their young develop outside the mother's body. In contrast to mammals, which have placentas to nourish developing embryos, lampreys rely on external fertilization and do not provide maternal support during gestation.
The egg is fertilized in the fallopian tube and then attaches to the uterine wall. The baby will develop in the uterus.
Fetuses develop nerves during the first trimester of pregnancy, around 5-6 weeks gestation.
Fertilized eggs that do not develop are known as "nonviable embryos." These embryos fail to progress through the stages of development due to various factors, such as genetic abnormalities or environmental conditions. In many cases, they are naturally reabsorbed by the body or expelled during menstruation.
Platy pregnancy has three main stages: fertilization, gestation, and birth. During fertilization, the female platy's eggs are fertilized by the male's sperm. The gestation stage is when the embryos develop inside the female platy's body. Finally, the birth stage is when the female platy gives birth to live young. Unfortunately, I am unable to provide pictures to illustrate these stages.
It would be more appropriate to say that all vertebrate embryos develop pharyngeal gill slits during one of the many phases in their embryonic development. This is because while gills are specifically present in fishes, pharyngeal gill slits are a general chordate feature.
Most embryos of mammals develop inside the mother's uterus, attaching to the uterine wall where they receive nutrients and oxygen through the mother's blood supply. This allows for protection and support during development until the offspring is ready for birth.