How do mutations enter the gene pool? why are they important to natural selection?

What happens during the heat transfer within earth

20 points and brainlist 1. london has suffered from terrible air pollution for at least seven centuries. why is the city so prone to its famous “london fog? ” what did london do to get rid of its air pollution? 2. why does air pollution cause problems in developing nations more than in developed ones?

Mrna decodes information from the original dna master plan to build proteins in the during the process of ribosomes.