A non-polar molecule is not affected by a polar molecule
O True
O False

What type of cell is produced after fertilization occurs and the gametes combines ?

Explain why scientists use the word dominant for certain traits.

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?