Final answer:
Female vocal registers include the chest voice, middle voice, head voice, and sometimes the whistle register.
Step-by-step explanation:
The different vocal registers for biological female voices typically include the chest voice, middle voice, head voice, and sometimes the whistle register. The chest voice is the lower register where the sound resonates largely in the chest. The middle voice serves as a bridge between the chest voice and head voice, often used for a smoother transition between the two. The head voice is a higher register, with resonance occurring in the head or sinus cavity, allowing for higher pitches to be sung without strain. Lastly, the whistle register, though not common to all singers, is the highest register, which is very light and flute-like in quality.