Your answer would be B ,C is incorrect because then he would get different answer D does not matter it would be the same A it would take longer and it basically the same as the measuring tape but B that would get you better answers that are more accurate because then you would have backups in case you mess up one. Hope that helps
So planarians' regenerative ability are powerful cells called pluripotent stem cells, which make up one-fifth of their bodies and can grow into every new body part. I hope this helped if you need more info about this let me know
anticodon .......................................
One thousand times.
Surface area is squared, volume is cubed. Thus, the root of 100 is 10, 10 cubed is 1,000.
This is why cells are so small - any larger and they wouldn't have enough surface area for the contents of the cell.