It is negative selection <span />
<span>The answers are visual spectrum and pupil. The visible light spectrum is a narrow band of frequencies ranging from 390 to 780 wavelengths long. These wavelengths are detectable by the eye and the different length corresponds to different colors.
The pupil determines how much light can enter the eye. It dilates and constricts depending on the amount of light available.</span>
The most widely effective solvent for organisms is a material that is nonpolar. This is because most of the molecules present in organisms are nonpolar so it would only dissolve in nonpolar solvents like lipids, DNA, proteins, amino acids and fats. Nonpolar molecules would share their electrons equally resulting to having no partial charges in the molecule. The electronegativities are cancelled by each atom. Examples of this are most of the organic compounds like benzene and hexane, carbon tetrachloride is also a nonpolar molecule. To identify whether the molecule is nonpolar or polar, you need to look at the structure and the electronegativities of the atoms.
