What is the name of the “thing” that has antigens on its surface? Where are antigens found on these “things”?

On the surface of red blood cells

Explanation:

Antigens are found on the surface of the red blood cells and are ignored by the immune system but antigens of another blood type are seen as foreign and attacked by antibodies

prophase: we can observe the chromosomes to coil up and condense. they become visible. nuclear membrane and envelope disintigrate.s

metaphase: chromosomes align at the center, the metaphase plate. spindle fibers attach to centromeres of the sister chromatids. they meet at kinetochores.

anaphase: sister chromatids are pulled towards each opposing centromere, set on different poles.

telophase: chromosomes are now clustered up only on either sides of the cell. nuclear membranes reform, and a new cell wall forms along the cell plate. this will lead to cytokinesis, the process that divides the cell membrane and forms the cell wall.