When the antenna of a male moth detects tiny amounts of the chemical released by a female moth, the antenna is functioning as an?

Receptor.

Explanation:

When the antenna of a male moth detects tiny amounts of the chemical released by a female moth, the antenna is functioning as a receptor, as it is receiving the pheromones released by the female moth, from a distance away. The female moth is functioning almost the same way, but is instead broadcasting it instead of receiving it.

one part of the electromagnetic spectrum that arrives on earth as solar radiation from the sun is the visible spectrum. wavelengths of the visible spectrum combine to form what we refer to as

answer - d) ultraviolet radiation.

violet /   380–450 nm / 668–789 thz

violet is number 1 in the chart of visible light.