The difference between compoundsand molecules isa. that one describes protons, and the other describe electrons. b. they are made of different atoms. c. compound is a general term, while molecule is more specific.

If the coding part of an mrna molecule is 1800 nucleotides (bases) in length, this molecule will contain codons and code for a polypeptide that is amino acids long.

The pharynx is the structure in the body that serves as a pathway of both air and food. how does the body make sure that food does not get into the lungs? the salivary glands secrete enzymes that pull food out of the air pathway. the small intestine pushes the air out of the digestive system. the pancreas breaks down food in the air pathway. the epiglottis closes the air pathway so that food will not enter it.

All ova contain sex chromosomes corresponding to: x y xx xy