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.
Northern Cardinal - Cardinalis cardinalis. The cardinal is about eight inches in length. It has a black mask on its face; a crest on its head; and a short, cone-shaped bill. The mask on the female is usually lighter than the mask on the male. Cardinals are known for their bright red color, but only the male is red. The female is a dull brown or olive color with dull red on her wings and tail. The northern cardinal can be found in most parts of United States east of the Rocky Mountains. It is also found in parts of Arizona, California and New Mexico. The range of the cardinal has increased in the last 50 years to include New York and New England.