Dr. stevens is examining the dna sequences of a group of mice. he notices that in one of the mice, one nucleotide pair is substituted with another in the part of the dna sequence that codes for fur color. however, despite the substitution, the mouse still has the same fur color as the other mice with the correct dna sequence. why doesn't the substitution of nucleotides in the mouse change its phenotype, or physical characteristics?

Which best compares habitat and niche? o niche is a place in which organisms live, and habitat is the way in which an organism fits into its habitat.o habitat is a place in which organisms live, and niche is the way in which an organism fits into its habitat.habitat is a group of organisms that live in an area, and niche is a specific species that lives in that areao niche is a group of organisms that live in an area, and habitat is a specific species that lives in that area.

Regarding most of the narrator’s story, which word best describes the tone?

The smallest parts of these that retain their original properties are called