Telescopes, satelites, rovers, just to name a few. Hope this helps!
DNA and Genes are linked because dna is made up of genes in one way or another
The number of electrons in the outermost shell of an atom determines its reactivity.
I am pretty sure that the thing which most likely happen to plants if they did not have a waxy outer coating is being revealed by the last option D. They would be harmed by insects and UV radiation. Every plant has to be protected by membrane so that it would be able to deal with drought small invaders and other external forces.
The answer is D, increasing genetic variation
