Restrictions enzymes only work on certain base sequence. Since there are many sequences, only one enzymes is needed. True or false

What kind of action is a cause of air pollution

How do diseases caused by bacteria and diseases caused by viruses react to antibiotics?

On a spring day, a middle-latitude city (about 40? north latitude) has a surface (sea-level) temperature of 10 ? c. if vertical soundings reveal a nearly constant environmental lapse rate of 6.5 ? c per kilometer and a temperature at the tropopause of –55 ? c, what is the height of the tropopause?