What are three ways that archaebacterea are different from eubacterea

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

If the nucleus of a cell was removed the cell wouldn’t be able to make proteins because

Antoine manages a number of apartment buildings that use natural gas for heating, cooking, and laundry. the scatter plot shows the correlation between the outside air temperature and antoine's natural gas bill. which type of correlation does the plot illustrate?