There are 12 pairs of curved bones called X in our chest region. One end of bones X is joined to the backbone and their other end is joined to bone Yin front to form a box-like structure Z. This strong box-like structure protects the delicate internal organs P and Q.(a) What are X, Y and Z? (b) Name the organs P and Q.

Explanation: Ribs:The thoracic cage (rib cage) forms the thorax (chest) portion of the body. It consists of the 12 pairs of ribs with their costal cartilages and the sternum

ummm? is that supposed to be a question or a but this is a reason he won re-election

explanation:

"despite progress in the war, lincoln and most political pundits were convinced that he would lose his bid for reelection in 1864. the country was war weary and the democratic party's nominee, george mcclellan, was likely to negotiate a peace treaty with the confederacy if elected." - loc.gov

answer; the period of time known as the middle ages;