D should be correct....
hopefully this helps you.
<span>Invertebrates means having no backbone.</span>
The answer is D. NADH to NAD+
When no oxygen is present, anaerobic respiration occurs.It is the only way to produce ATP in this condition.NAD+ is necessary because it is converted into NADH and at the same time ADP is converted to ATP in the reaction of pyruvate synthesis from glucose.Therefore, NADH must be converted to NAD+ in order to have NAD+ always present in the cell.
Amylose is less soluble in water. It does not form a gel when hot water is added. Amylose constitutes about 20-30% of the starch. Amylose can be hydrolyzed with α amylase and β amylase enzymes completely.
If we heat the solvent, the average kinetic energies of its molecules increases. Hence, the solvent is able to dislodge more particles from the surface of the solute. Thus, increasing the temperature increases the solubilities of substances. Hope it helped..