Research to support a genetic component to adhd indicates that the regulation of may be involved: a.serotonin b.benzoate c.dopamine d.testosterone

c.dopamine

Research to support a genetic component to adhd indicates that the regulation of dopamine may be involved. Adhd is a development syndrome that involves a difficult in the management of some cerebral functions, and dopamine is an hormone responsable for many cerebral functions, and it was found in several study that people with adhd have more dopamine then others.

The presence of light and enzymes within the plant's chloroplasts act as the catalysts for the light-dependent reaction and begin the process by splitting the water molecules into electrons, protons and oxygen. Hope this answers the question. Have a nice day.