Select all that apply. what is the difference between dna and rna?
a. dna is a protein and rna is a nucleic acid.
b. dna uses deoxyribose and rna uses ribose.
c. dna has adenine and rna has thymine.
d. dna has thymine and rna has uracil.

The soviet union beat the us to the first successful launch, with the october 4, 1957, orbiting of sputnik 1, and later beat the us to have the first human in earth orbit, yuri gagarin, on april 12, 1961. the "race" peaked with the july 20, 1969, us landing of the first humans on the moon with apollo 11