Viaspace Giant King Grass shows high yield at California site. Viaspace Inc. has announced that the first harvest of Giant King Grass in the Imperial Valley of California, was completed on Sept. 2. At the University of California site in Holtville, California, two planting methods were compared.
Identical Twins occur when a single egg is fertilized by a single sperm to form one zygote (monozygotic) but the zygote then divides into two separate embryos. The biological mechanisms that prompt the single fertilized egg to split in two remain a mystery. The two embryos develop into foetuses sharing the same womb.
There isnât just one reason for the multiple birth explosion, there are a number of contributing factors to this phenomenon. Causes of Multiple Births The natural rate of occurrence for twins is 1/89 singleton births. Triplets occur at a rate of 1/89 twin births, and so on. This is known as Hellinâs Law.