Umbilical vein transports blood rich in oxygen and nutrients from the placenta to the fetus. The unpaired umbilical vein is a vein present during fetal development and it transports the nutrient- and oxygen-rich blood from the placental villi via the umbilical cord to the embryo. The umbilical vein is connected to the two intraembryonic umbilical veins.
Answer:
Wind is not a biotic factor of niche because it does not fall under the 3 components of the ecosystem.
Explanation:
Almost positive diagram A is a animal cell that’s eukaryotic, and Diagram B is a plant cell that’s also eukaryotic.
Answer:
We know the process of mitosis produces diploid cells because as a result of mitosis, identical cells are formed as the parent cell. This shows that the daughter cells are also diploid just as the parental cell.
We know the process of meiosis produces haploid cells because after fertilization, the number of chromosomes in maintained and genetic stability is achieved. The genetic stability can only be achieved if the number of chromosomes become haploid in the sex cells.
