Which of the following steps occurs in both cellular respiration and photosynthesis? a.) light-dependent reaction
b.) Krebs cycle
c.) electron transport chain
d.) glycolysis

Which element is used in photosynthesis found in atmosphere and fixed by bacteria?

Nasa scientists must work together to make sure that everything is correct and accounted for when launching a shuttle. besides a physicist, what other type of scientist would be in making sure that the shuttle has the appropriate type and amount of fuel to reach its destination?

Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays