This process is known as serial dilution
"Sex Cells" or "haploids" are needed in order to add variation in DNA. If there was no "haploids" (which are just cells with 23 Chromosomes), then the female would not need the male for reproduction, basically meaning birth of an identical twin to the mother. The two haploids, the female's ova (Egg) and male's sperm meet, creating a zygote, or a fertilized egg.
This makes sure there is "immediate variation", and it isn't just ten generations of the same "Bob"!
The answer is splenic vein and superior mesenteric vein. To simplify, the hepatic portal vein is made by the union of the splenic vein and the superior mesenteric vein. The hepatic portal vein is one of the utmost significant veins that obtain blood from the body and transfer it to the liver for filtration and treating. This vein is a portion of the hepatic portal system that obtains all of the blood strenuous from the abdominal digestive area also from the pancreas, gallbladder, and spleen.
The answer is: In recent years, scientists have discovered fossils from long ago that glaciers have hidden
