people who get an influenza vaccine produce antibodies that protect them against being infected by the particular influenza viruses that are used in the vaccine. which of the following explains why an influenza vaccine might be ineffective?

Which is not a type of symmetry? a. asymmetryb. radial symmetryc. bilateral symmetryd. lateral symmetry

What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water

Which of these would most likely be a stimulus that would cause the body to initiate feedback mechanisms a.) normal body temperature in an arctic environment b.) normal boy temperature in a tropical environment c.)light physical activity d.)low blood sugar