What is antigenic drift ?( or genetic drift) what is antigenic shift (or genetic shift)?

Synovial fluid serves as a lubricant to prevent friction between two parts that move on each other such as in the case of and bones.

Which of the following is not a tip to prevent getting a foodborne illness

How would you compare a health care system in ancient egypt and a interdisciplinary health care team? a) these systems are quite similar; the only difference is that interdisciplinary teams today have better technology. b) these systems are very different; in ancient egypt, the team was all ranked the same, where today, the teams all have different rankings based on importance. c) an interdisciplinary team shares goals and responsibilities. in ancient egypt, each level of professionals had different goals and responsibilities. d) today's interdisciplinary teams are structured as hierarchies. in ancient egypt, these teams were patient focused.