That organ is called as uterus. The size of the uterus is 3*2*1 inches. It enlarges to enormous size to accommodate the fetus.
They copulate.
Lamarck.
Lamarck.
In a pouch mainly.
The Heart.
Egg -> tadpole -> frog (Note, most fail to develop properly.)
Egg -> tadpole -> frog (Note, most fail to develop properly.)
it's possible
Horses are like most mammals (humans, too) and the unborn develop in a uterus.
The heart is the first organ to develop in a fetus. Together, blood and the circulatory system, that is powered by the heart, form the first organ system.
fertilize egg
Jean-Baptiste Lamarck proposed the theory of the inheritance of acquired characteristics, which suggests that the use or disuse of an organ could lead to changes in that organ that are then passed on to the offspring. This theory was later found to be inaccurate in light of modern genetics and the principle of inheritance through DNA.