How do you explain in biochemistry: a lack of sleep causes a lack of energy

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

The cluster of developing cells from conception until birth is called an

In this experiment, the was intentionally manipulated. it is the independent variable. the dependent variables that were measured were the