Atissue system is a group of organs that work together to perform body functions

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

(amoeba sisters video recap: pedigrees and need

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?