Hello I have a quiz and the time is unlimited. This sentence appeared to me.
The timer can only start after the setup process is finished.
What does this timer mean? Why does that time appear unlimited, please explain

the peripheral nervous system or pns contains the nerves, which leave the brain and the spinal cord and travel to certain areas of the body. the peripheral nervous system's main job is to send information gathered by the body's sensory receptors to the cns as quickly as possible.

brain development. a child's brain undergoes an amazing period of development from birth to three—producing more than a million neural connections each second. the development of the brain is influenced by many factors, including a child's relationships, experiences and environment.

explanation:

i think the answer is a.keratin is the pigment responsible for skin color.