<span>I believe its respond to nonliving factors around them</span>
The answer is; The moths will evolve due to selective pressure.
The allele for dark colored moths will be favored by natural selection over the allele for light-colored moths. This is because of the selective pressure of predation. Black moths are able to camouflage in their environment while light-colored moths stand out to their predators. More black moths are therefore able to pass down their genes than light-colored moths. Successive generation will, therefore, have more and more black moths.
it's the structure of the nucleotides
the basic building unit of nucleic acid
Answer: of its invariant body plan, ease of genetic manipulation and low cost of maintenance
Explanation: Caenorhabditis elegans is a microscopic, soil-dwelling roundworm that has been powerfully used as a model organism since the early 1970″s. It was initially proposed as a model for developmental biology because of its invariant body plan, ease of genetic manipulation and low cost of maintenance.