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An embryo makes blood because it begins to develop into a fetus and later into a new infant. An egg can not become an embryo without the DNA that the sperm donates.
Cord blood is a sample of blood taken from a newborn baby's umbilical cord
Red bone marrow
Yes, this is true. Because the size of an infant there is going to be less blood. An adult will have more because of the size difference.
red blood cells are formed bone marrow of long bones such as the arm bone, vertebrae, and leg bone.
red blood cells are formed bone marrow of long bones such as the arm bone, vertebrae, and leg bone.
Bone marrow in an adult, bone marrow and spleen in an infant, spleen and liver in a fetus.
Yolk or blood are food for embryo .
No, the mesoderm in the developing liver is responsible for producing the first hematopoietic cells.
The precise color of an embryo will change as it develops, but for much of development, pigmented cells have not yet formed, so the embryo will mostly be white-pink in color. The embryo proper will be white or off-white, but the circulatory system forms pretty early so the red of the blood moving through the embryo gives it a pinkish hue.
you never draw BLOOD from an infant from the baby