The range for a normal resting heart rate is 60 to 90 bpm. a trained athlete could have a resting heart rate of 45 to 60 bpm. why might a very fit person have a slower heart rate than someone of average fitness? 1 pt

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.

a community that experiences major changes undergoes progress