Some examples could be Giraffes with long necks and the darkening of London's peppered moths after the industrial revolution. Direct selection is the shift of the population of one species towards a certain phenotype. -reference.com
planets can be different from angiosperm it can be one of the many things it has.
A mutation may result change in the way you look, you could lose sight, could be born with some genetic issues.
There are 3 Oxygen atoms bonded to 1 Nitrogen atom.
Hope this helps!
-Payshence