How is ADP converted to ATP? by the addition of one adenosine molecule
by the addition of one phosphate group
by the removal of one adenosine molecule
by the removal of one phosphate group

List two limitations of natural selection

Which group is noted for the independence of gametophyte and sporophyte generations from each other? a) ferns b) mosses, hornworts, and liverworts c) charophytes d) angiosperms e) gymnosperms

Does the sun release radiant energy?