Stick insects, also called walking sticks, are typically and subtropical forests and grasslands. The insects are able to largely camouflage themselves by living among twigs in their environment.

answer: substrate concentration. enzymes work best when there is a high enough substrate concentration for the reaction they catalyse.

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.