Which of the following best describes contrasting physical characteristics between primates and other mammals?
primates have larger, forward-facing eyes and smaller noses than most other mammals.
female primates can give birth to a larger number of offspring at once than most other mammals.
other mammals have greater grasping ability than primates, since primates lack opposable thumbs
the teeth of most primates are much larger in size than in other mammals.

"Primates have larger, forward-facing eyes and smaller noses than most other mammals" is the one among the following choices given in the question that best describes contrasting physical characteristics between primates and other mammals. The correct option among all the options that are given in the question is the first option.

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