When a plant grows as mediated by growth hormones, which main plant organs are at work? meristem and roots stems and leaves roots and stem leaves and roots

The correct answer is the roots and stem of the plant.  

The plant organs comprise the stems, roots, flowers, and leaves of the plants. Meristems are not considered as organs of the plant, however, are the areas of tissue found within an organ in which the active cell growth and division take place. Although, meristems are observed most generally at the growing tips of the stems and roots.  

Stems and Leaves

Explanation:

I'm doing the test right now. Roots and Stems IS WRONG. The answer is B.

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both anaerobic and aerobic respiration use glucose (or other carbohydrates), proteins and lipids to produce atp and nadh. cell uses those energy molecules, obtained from food and   breaks them down during the chemical reactions of respiration. in anaerobic respiration, nadh is regenerated to nad+ by enzymes lactate dehydrogenase (lactate is produced, e.g. in muscle cells) or by alcohol dehydrogenase where ethanol is produced (alcohol fermentation), while in aerobic respiration, electrons from nadh are deposited in the mitochondria to regenerate nad+ (electron transport chain. anaerobic respiration produces 2 atp per molecule of glucose compared to aerobic respiration where about 38 atp molecules are produced.