1 A nuclear envelope reforms around each chromosome set, the spindle disappears, and cytokinesis follows. 2  In animal cells, cytokinesis involves the formation of a cleavage furrow, resulting in the pinching of the cell into two cells.
Urticaria (Hives) Itchy, raised red areas on the skin. Hives are caused by a reaction to certain foods, drugs, infections, or emotional stress. Also called urticaria.
Things (called triggers) that can cause someone to have hives include: 1  foods, especially shellfish, tree nuts, milk, and fruit. 2  medications and allergy shots. 3  pets and other animals. 4  pollen. insect bites and stings.  touching something you're allergic to.