<span>NADH and FADH2 are part of the Calvin cyle, so A and B are incorrect. I'm not sure, but I think that cytochrome C to oxygen has to do with cell division. The correct answer is D, the electrons are passed from reduced ubiquinone (QH2) to cytochrome, C, one at a time.</span>
Ozone is produced naturally in the stratosphere. But this "good" ozone is gradually being destroyed by man-made chemicals referred to as ozone-depleting substances (ODS), including chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), halons, methyl bromide, carbon tetrachloride, and methyl chloroform. These substances were formerly used and sometimes still are used in coolants, foaming agents, fire extinguishers, solvents, pesticides, and aerosol propellants. Once released into the air these ozone-depleting substances degrade very slowly. In fact, they can remain intact for years as they move through the troposphere until they reach the stratosphere. There they are broken down by the intensity of the sun's UV rays and release chlorine and bromine molecules, which destroy the "good" ozone. Scientists estimate that one chlorine atom can destroy 100,000 "good" ozone molecules.
11.
A. 1380 kcal
B. 138 kcal
C. 13.8 kcal
12. They are released as heat
Answer:
Explanation:
The genotypes of the parents are Tt and tt
