Answer:
If your just looking for a description here you go.
Explanation:
Most spiral galaxies contain a central bulge surrounded by a flat, rotating disk of stars. The bulge in the center is made up of older, dimmer stars, and is thought to contain a supermassive black hole. Approximately two-thirds of spiral galaxies also contain a bar structure through their center, as does the Milky Way.
Hope this helps.
Lytic infection is a kind of infection, which results in the bursting of a cell. During the lytic cycle, the infected cell and its membrane is being destructed. Therefore, during a lytic infection, the host cell is destroyed when it burst. The word lysis means the disintegration of a cell by rupture.
When the swing is raised and released, it will move freely back and forth due to the force of gravity on it. The swing continues moving back and forth without any extra outside help until friction between the air and the swing and between the chains and the attachment points slows it down and eventually stops it.
