All galaxies have a dense core of stars. Spiral galaxies, however, have arms that are often visible. There are two kinds of spiral galaxies: barred, where there appears to be a line running from arm to arm through the core, and <span>ordinary, where there is no bar. @Badbunnyhunny</span>
Another element that is important to bones is calcium
Salmonella is the parasitic worm that can be transferred to humans when eating raw or undercooked fish.
The answer is B. I hope it helps.
