At that time, why did it seem reasonable for the bases to be on the outside of the DNA molecule?

Did you know that a single bee would have to go to over 2 million flowers to make a single pound of honey?

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

Which direction does the energy flow in this energy pyramid ?