<span>In vitro fertilization
Not much to say, the question pretty much defines the technique. The first successful birth via IVF happened with the birth of Louise Brown in 1978. There are some issues with IVF that can cause complications. Among them are multiple births (twins or triplets) due to multiple blastocysts successfully implanting in the woman's uterus.</span>
Chloroplasts (they are only present in plants)
Composting is a form of waste that uses organic materials to put into plants in order to help them grow and flourish. It saves energy, and it doesn't give off many gasses to help the Earth.
However, it is ineffective on the large scale and cannot be mass produced to help Earth instantly because of the large amounts of inorganic materials.
My freind the correct anwer is the 18th amendment
Red blood cells are disc shaped. It is thought one factor that allows them to have this shape is because they do not have a nucleus. This tends to increase amount of space inside the cell for hemoglobin.
They have a flexible disc shape which helps increase the surface- to- area volume ratio which enables oxygen and carbon dioxide to diffuse across the red blood cell's plasma membrane more readily.
Their disc shape also enables them to squeeze through tiny capillaries that are half their size .
