Natural selection is limited in its effectiveness in preserving new favorable mutations in an environment that

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.

i think that d. wind is the answer.   i missed the question when i answered a. currents.

the correct answer is sex-linked recessive.

i just took the test

answer( increase) their individual contractile activity;