In addition to glucose, which of the following is required for aerobic respiration to occur in cells? co2 o2 h2o and co2 co2 and o2

How many chromosomes does each human cell contain? a. 23 chromosomes b. 26 chromosomes c. 43 chromosomes d. 46 chromosomes

Which of the following is a reason why early living organisms on earth could not have survived on the surface? 1. the lack of an ozone layer 2. the lack of oxygen in the atmosphere 3. the fact that these organisms were single-celled

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