<span>The geologic time scale is divided into periods, which are then divided into epochs, which are further divided into ages. For example, the time of the dinosaurs lasted 3 periods (Triassic, Jurassic, Cretaceous), each period had 3 epochs (late, early, middle), and each age fit into one of those. Many epochs have more than 1 age associated with them.
As for the basis for differentiating the eras, I'm not so sure. The only one I can say for sure is the end of the Cretaceous, which is when the dinosaurs suddenly became extinct due to a meteor impact. I think the divisions are based on significant, global-scale events that changed the world.
Sorry its so long but that the answer i think >:) ur welcome
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Genetic material is being duplicated during C. Interphase of the cell cycle.
The two monomers present in one molecule of disaccharide sucrose is composed of the monomers glucose and fructose.
Answer:
The new cells might only contain only half the original number of chromosomes, or one cell might contain more chromosomes than the other if replication did not occur before cytokinesis. They would not be viable. They wouldn't have a complete set of DNA.
Explanation: