What information about an object can be used to describe its motion?
A.
direction, position, and mass
B.
mass, position, and speed
C.
position, direction, and speed
D.
speed, mass, and direction

C) position, direction, and speed

You don't need the object's mass to describe its motion. The direction and speed can be combined to form the velocity vector. The position along with the velocity vector helps us determine where the object is likely to end up next.

An example is this: We have a truck in city A and it's traveling north to city B at a speed of 50 mph. It's position is in this city. It's velocity is composed of the speed of 50 mph and the direction is north. All of these three factors help us conclude that the truck is likely aimed for city B.

Proteins are the workhorses of the cell, controlling virtually every reaction within as well as providing structure and serving as signals to other cells. proteins are long chains of  amino acids  , and the exact sequence of the amino acids determines the final structure and function of the protein. instructions for that sequence are encoded in  genes  . to make a particular protein, a messenger ribonucleic acid (mrna) copy is made from the gene (in the process called  transcription  ), and the mrna is transported to the  ribosome  . protein synthesis, also called  translation  , begins when the two ribosomal subunits link onto the mrna. this step, called initiation, is followed by elongation, in which successive amino acids are added to the growing chain, brought in by transfer rnas (trnas). in this step, the ribosome reads the  nucleotides  of mrna three by three, in units called  codons  , and matches each to three nucleotides on the trna, called the anticodon. finally, during termination, the ribosome unbinds from the mrna, and the  amino acid  chain goes on to be processed and folded to make the final, functional protein