<span>What MUST occur before mitosis and meiosis can occur is B) DNA replication. DNA replication is a process of copying DNA into an identical copy. Before mitosis, the genetic material of the mother cell must duplicate so that each daughter cell have the same amount as the mother cell. On the other hand, meiosis is a reductive division. But meiosis II is similar to mitosis, so DNA replication is also necessary.</span>
Both are used to determine the age of objects
The specialized cells Cnidocytes<span>, the harpoon-like "nettle cells" that give the </span>phylum<span> Cnidaria its name, are used for protection against prey. </span>
The answer is An object is in motion if it changes position relative to a reference point. You assume that the reference point is stationary, or not moving.