Several billion years ago which gas was the least prevailant in the atmosphere

Which of the following is the best definition of aerobic respiration? o a. the cellular process that releases energy by breaking down glucose o b. physical activity that involves the repeated motion of large muscle groups o c. physical activity that increases heart rate and breathing rate o d. the cellular process that converts solar energy to chemical energy

The color of the fur is the genotypephenotype.the genetic combination of alleles that determine the fur color is called the genotypephenotype.

In the first stage of the nuclear fuel cycle the spent fuel must be transported, processed, and disposed of properly. true or false