What is the job of ribosomes and mitochondria?

What role do traits play in affecting an organisms ability to reproduce? finches

The production of cells during mitosis into specialized function is recombination or differentiation

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