The right answer is higher-than-average sea levels.
With the rise in CO2 level that caused an increase in air temperature and sea surface temperatures. At this time, they were the highest ever recorded. In addition, the rise in mean sea level continued and the extent of Arctic sea ice was well below normal for most of the year.
Higher than average sea levels because more co2 in the atmosphere increases in global warming. This causes ice caps to melt leading to and increase in sea levels
In evolutionary biology, convergent evolution is defined as the process whereby distantly related organisms independently evolve similar traits to adapt to similar necessities.
