The substitution of one base for another base in DNA can have what effects on the phenotype? Why would you expect additions and deletions of bases to have a major effect on the phenotype?

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 is the next step in muscle contraction after the actin changes shape? (apex)

Match the description of each organism to the appropriate category