Questions

The shape of our Milky way galaxy is Spherical.

The United States subprime mortgage crisis was a nationwide financial crisis, occurring between 2007 and 2010, that contributed to the U.S. recession of December 2007 –June 2009.It was triggered by a large decline in home prices after the collapse of a housing bubble, leading to mortgage delinquencies and foreclosures and the devaluation of housing-related securities.

Three main enzymes, pepsin secreted by the stomach and trypsin and chymotrypsin secreted by the pancreas, break down food proteins into polypeptides that are then broken down by various exopeptidases and dipeptidases into amino acids.

Hence, digestion of protein begin in stomach.

Androgens such as testosterone are produced by the Interstitial cells.

RNA polymerase attach to DNA molecule.

A man with colour blindness will see red and green as same. 

A posted speed limit of 55 mph means that we can drive at a speed of 55 miles per hour(mph) under good conditions in that area. We cannot that speed limit in that area.