Changes in dna are known as mutations and can be sometimes produce beneficial changes in population. a mutant form of the normally light-colored peppered moth is dark-colored. the dark-colored moth blends in with soot-covered trees in heavily polluted areas. why would the dark-colored mutation be beneficial in a polluted area?

Asap! how do you lengthen a pattern piece? (family and consumer science, sewing)

Cucl2 + 2nano3 cu(no3)2 + 2nacl what is the percent yield of nacl if 31.0 g of cucl2 reacts with excess nano3 to produce 21.2 g of nacl? 49.7% 58.4% 63.6% 78.7%

What happens when an atom of sulfur combines with two atoms of chlorine to produce sci2? a. each chlorine atom shares a pair of electrons with the sulfur atom. b. an electron is transferred from each chlorine atom to the sulfur atom. c. an electron is transferred from the sulfur atom to each chlorine atom. d. each chlorine atom shares all its valence electrons with the sulfur atom.