Because through natural selection, only the fittest survive. when the fittest come together and reproduce then the species continues and evolves with only the fittest and strongest genes.
Reaches the adult stage is the correct answer. When an intervebrate reaches the adult stage it has most likely stopped growing and can finally begin reproduction, passing further down the line his genes and the genes of his ancestors.
Light waves are part of the _electromagnetic spectrum. _
remember that the whole E.M. Spectrum includes various "types of light" > Infrared, (Visible) Light, and UV Light.
_Brainliest if helped!
