What was the ratio of dominant to recessive phenotypes in the f2 generation of mendel's experiments? apex?

When plants use sunlight to make food, the energy of sunlight is

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

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?