A spiral galaxy like the Milky Way contains stars, stellar remnants, and a diffuse interstellar medium (ISM) of gas and dust. The interstellar medium consists of 10â4 to 106 particles per cm3 and is typically composed of roughly 70% hydrogen by mass, with most of the remaining gas consisting of helium.
What do cardinals eat for food? Cardinals eat a variety of wild and feeder seeds, including sunflower, safflower and most other seeds in basic wild bird seed mixes. In warm seasons they also eat insects anâ¦d worms and feed their babies mainly an insectivore diet.
Upon closer inspection, the cardinalâs red crest, conical red bill, and black mask distinguish it. The female cardinal is tan with red feathers on the crest, wing, and tail. The bill is bright orange. Most cardinals measure about 7-8 inches in length.