Which nucleic acid serves as a strand for protein synthesis? a. tRNA
b. ribosome
c. mRNA
d. dATP

The body of water found at number 4 on the map above is the

Drag the tiles to the correct boxes to complete the pairs. match the nitrogenous base of dna with its complement.

How much time has elapsed from the very beginning of "the memior of the conquistador bernal diaz del castillo" to the end? a. castillo's whole life b. a quarter of an hour c. a few weeks d. a decade