Vehicle ownership by expats in Saudi. Public transport is almost negligible in Saudi Arabia. As an expatriate, it is really convenient if you have a car of your own. For those of you with your families, it is almost impossible to survive without a vehicle.
Phyla with a true coelom and digestive system are divided into two groups, the protostomes and the deuterostomes. As the hollow sphere of cells known as a blastula develops, an invagination produces an opening called the blastopore. In protostomes, the blastopore becomes the mouth.
During mitosis, the replicated chromosomes are separated and evenly partitioned to two daughter chromosomes. This portion of the cell cycle is commonly divided into four substages: prophase, metaphase, anaphase, and telophase (see Figure 19-34).