Students in mrs. nichols' ecology class noted that coastal regions in the state were changing. areas that had once been only occasionally submerged now remained underwater all year; even low tides did not uncover the once marshy areas. the ecology students hypothesized that the most likely reason for this change in sea level and therefore habitat was

a time line cause it goes from 685 to 978

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.