Because it has reached the stage of a noble gas
The natural blind spot is due to lack of receptors where the optic nerve and blood vessels leave the eye. There can also be artificial blind spots when something blocks light from reaching the photoreceptors, or when there is local adaptation of the retina as just after seeing a bright light
D. It is not under voluntary control
* Skeletal muscle is the only voluntary muscle type
Convergent is the first blank i don’t know the second i’m sorry.
