Which explains why different species are able to produce insulin? A.
All living organisms have genes that are made up of the same components.
B.
Insulin is a protein that all species produce in order to regulate metabolism.
C.
The gene for insulin originated in bacteria and was passed on to other species over time.
D.
All species contain DNA, which naturally rearranges itself into any gene.

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.

since there are no options posted i'll give you a few examples.

a dolphin's flipper, bird's wing, cat's leg.