An increase in the atmospheric concentrations of greenhouse gases produces a positive climate forcing, or warming effect. ... The warming effect associated with carbon dioxide alone increased by 36 percent
This organism is most likely a fungus, from kingdom fungi. A big clue is that this organism is living on the bark of a dying tree, which makes it a saprophyte, which are organisms that feed on dead matter, and most fungi are saprophytes.
The correct answer is A.) Sister chromatids pulled to opposite pole, nucleoli form, cytokinesis.