1. The engineers made pontoons so that they could easily cross rivers.
2. They dug beneath the enemy's city walls to weaken them.
3. Used battering rams to hammered the enemy city's gates.
About 1,029,900 immigrants settled in the United States in 2009
The answer is Meiosis. Meiosis is the process that is responsible for the independent assortment of alleles. The role of this process is to separate the chromosomes and its alleles. this process is required to produce egg and sperm cell for sexual reproduction.
B. The ottomans promoted free trade on the silk road