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.
Bird. The cardinal is the only red bird in eastern North America with a crest on top of his or her head, which rises when the bird senses danger.Cardinals are not migratory and stay in the same area year-round. They form winter flocks with up to 60-70 birds.ird. The cardinal is the only red bird in eastern North America with a crest on top of his or her head, which rises when the bird senses danger.