What is the source of energy that drives convection within the earth*s atmosphere?

The observations of hooke and van leeuwenhoek documenting the existence of microscopic cells formed the basis of what important theory? a. the cell theory stating that all living things are composed of cellsb. the theory of spontaneous generation, which held that life forms could arise spontaneouslyc. the theory of chemotherapy, or use of antimicrobials to destroy pathogenic organismsd. the germ theory of disease and causative agents

What macromolecule is produced during translation? a. carbohydrate b. rna c. dna d. protein

Which of these is not a nucleotide base found in dna?