Are muscles that contract and relax automatically, without conscious control by the organism.

Based on the law of dominance, we would expect percent of the offspring from this cross to have large teeth.

What class of levers is shown in this image?

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?