Question

A _________ is a region of absece of light.​

Answer 1

Apoptotic zone

Absence of light refers to darkness, the physical condition of absence of light. Absence of light may also refer to: Aphotic zone, the portion of a lake or ocean where there is little or no sunlight. This Blinding Absence of Light, a 2001 novel by Moroccan writer Tahar Ben Jelloun.