I don't know the answer sorry
Organic matters are generally carbon compounds. Therefore, the organic molecules contain carbon. The main reason of the presence of carbon in the organic molecules is the catenation property of carbon.
The germinal period ends approximately two weeks after conception. <span> This </span>stage<span> occurs during the first 2 weeks of development (or the 2nd - 4th weeks of pregnancy). The union of the sperm and egg cell forms a single cell called a zygote. </span>
True. Otherwise we would never stop growing although broken bones regain cartilage into solid bone when we break one but it doesn’t expand.
