How does the atmosphere make the earth suitable for life?

Cells tend to have a relatively small and uniform size. why aren’t cells larger?

The location of the stomach is the diaprham

The carbon cycle is best defined as a process in which a. carbon changes from inorganic forms to organic forms and back b. carbon is changed into other elements such as oxygen or nitrogen c. carbon is continually created from the sun’s energy by plants d. carbon is consumed and regenerated from other elements such as oxygen and nitrogen