Which step of mitosis involves the chromosomes lining up in the center of the cell?
metaphase
prophase
anaphase
telophase

How would you describe the the organisms in the second row of model 1 that are connected to the parents by a line

Which nucleotide component contains nitrogen

Asquirrel population lives in an area. over many years, a river in that area grows wider and stronger, eventually forming a canyon. the squirrel populations on the two sides of the canyon can no longer mate with each other and ultimately form distinct species. this is an example of