Question

How are these varieties of galaxies arranged in keeping with the size (smallest to largest)?: spirals, giant elliptical, dwarf elliptical and irregular.

Answer 1

Hint: A galaxy is also called a gravitationally bound system of stars, where stellar remnants, interstellar gas, dust, and substance. The word galaxy springs from the Greek galaxias literally "milky", a relevance to the Milky Way Galaxy.

Complete answer:
Our own Galaxy and so the spiral nebula are typical, large spiral galaxies. They also contain a central bulge, a halo, a disk, and spiral arms. Interstellar material is often spread throughout the disks of spiral galaxies. Bright emissions that are present with nebulae and hot, young stars are present, especially within the spiral arms, which are showing that the new star formation remains occurring.
Elliptical galaxies consist of the old stars and they have shapes which are spheres or ellipsoids (somewhat squashed spheres). They contain no trace of spiral arms. Their light is dominated by older reddish stars (the population II stars discussed within the extragalactic nebula Galaxy). Within the larger nearby elliptical, many globular clusters are often identified. Dust and emission nebulae aren't conspicuous in elliptical galaxies, but many do contain a touch amount of interstellar matter.
Hubble classified galaxies do not have the regular shapes which are associated with the categories so we just described into the catchall bin of an irregular galaxy, which we still use his term. Typically, irregular galaxies have lower masses and luminosities than spiral galaxies.

Note:
Galaxies aren't distributed randomly throughout the universe, but are grouped in gravitationally bound clusters. The Milky Way Galaxy could be a component of a poor cluster called the Local Group which contains about 50 galaxies including dwarf galaxies.