Just need the letter only answer if you know 100% they are right : )

How many copies of each chromosomes should be present in each of the 4 final haploid versions of gamete?

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.

What element is able to combine with itself and hydrogen to form large molecules ?