Is the use of a single blastocyst justified if it leads to a cure for serious illness?

Which statement is true about the cell theory? a) it is well-supported by evidence. b) it is unchangeable and permanent.

Which of these best describes what occurs during cytokinesis? a) the chromosomes are separated b) the cell begins to divide by replicating the chromosomes c) the cytoplasm is divided between the two new daughter cells d) the nucleus opens to allow the chromosomes to enter the cytoplasm

This is collection of data made by comparing objects in standard units. in science, the units are metric.