Which two structures contain codons and anticodons?
mrna and trna
trna and amino acids
amino acids and mrna
rrna and trna

The earths core is made up mainly of what 2 substances? 2. like an egg, earth has a core, a layer surrounding the core, and a thin, hard outer layer. which layers of the earth match the layers of an egg?

Drag the tiles to the correct boxes to complete the pairs. match each cell organelle with its description.

The scales shown in the introduction measure mass, or the amount of matter in a particular object. the scientific law of conservation of mass states that matter cannot be created or destroyed during a chemical reaction, but it can change from one form to another. did the simulation support this scientific law? explain why or why not.