How do spiral and elliptical galaxies differ in terms of the presence or absence of disk and halo components. how do spiral and elliptical galaxies differ in terms of the presence or absence of disk and halo components. the major difference between spiral and elliptical galaxies is that elliptical galaxies lack a significant disk component, although both types have the halo component. the major difference between spiral and elliptical galaxies is that both types of galaxies lack a significant disk component, although elliptical have the halo component. the major difference between spiral and elliptical galaxies is that spiral galaxies lack a significant disk component, although both types have the halo component. the major difference between spiral and elliptical galaxies is that spiral galaxies lack a significant disk component, although elliptical have the halo component?