The behaviors and physical characteristics of species that allow them to live successfully in their environment are called

adaptions

Explanation:

An adaptation is an ability of organisms such as a plants or animals which help them to survive in its changing environment. Adaptation may be due to mutation or genetic change which inherited from generation to generation. Adaption can be structural or behavioral. In a structural adaptation physical part of an organism changes, for example some plants such as cactus adapted to live in desert. In behavioral adaptation action of an organism changes, for example migration of animal from one place to other.  

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.