Please answer asap :(!

Has anyone taken the genetics unit test in connexus? not looking for answers, just a little bit what to expect and some with studying.

Dna, in the nucleus carries the genetic code for making proteins in ribosomes. in the diagram, b, represents the proteins produced. dna cannot leave the nucleus to carry the genetic information to the ribosome where proteins are produced. how does the genetic code get from the nucleus to the ribosome? what does a represent? now

Define adaptation. why do organisms adapt? give an example.