Which nucleic acid moves the code for protein synthesis from the nucleus to the ribosomes?

What is the relation ship between structure and function in an organism

Apopulation of black bears depends on salmon from a stream for food. if a drought causes the stream to run dry one year, how will this likely impact the black bear population?

Consider the skeleton. which skeletal system is represented by the shaded portion of the skeleton? spongy skeleton compact skeleton axial skeleton appendicular skeleton