Answer: What substances dissolve in ocean water.
This is the only question that can be answered through scientific investigation because it is the only question that can be tested. The other questions cannot be answered through scientific investigation because they based on opinions which are more abstract.
Phototropism, Gravitropism, Thigmotropism, <span>Hydrotropism and Heliotropism</span>
The first steps of catabolism generally take place in the cytosol.
Glycolysis and pentose phosphate pathway are metabolic process that occurs inside of the cytosol. Other catabolic processes such as the citric acid cycle, electron transport chain, and oxidative phosphorylation all take place in the mitochondrial membrane.