How does an instinct differ from simple innate behavior?
Instincts are necessities to keep "most" of us alive. Simple innate behaviors are traits, habits and responses, we gained in our own lifetime.
Innate behavior is a generic term for traits that we either observed, learned or encoded to our system. Instincts are the one's that keep us in placed and alive. Simple innate behaviors are unconscious or conscious actions, people develop in their lifetime.