During winter break you came down with a horrible cold. then, during spring break, you came down with another horrible cold! in fact, you have probably had the common cold dozens of times in your life. if having a disease is one way to gain immunity, why have you not become immune to the common cold? a. there are at least 200 different viruses that can cause the common cold, and they change over time. b. actually, you have developed immunity to the common cold and get sick only from bacterial infections. c. only non-specific immunity you fight the common cold, and specific immunity is not an effective defense against viruses. d. the pathogen that causes the common cold attacks and kills memory cells, continually "erasing" the immune system's memory of it. e. the rhinovirus that causes the common cold has no surface antigens and so can move through the body without being detected.

Apatient receives 250 ml mg of oil drug at noon 6 p.m. and midnight the drug has a half life of 6 hours how much does a drug remain in the patient at 6 a.m. the next day

Alberta is a 20 year old who has been a vegetarian for 3 years. she comes to you for advice after reading some material online by the meat promoters of america organization. one of their statements is: ". . vegetarians are at risk for protein deficiency because they cannot consume all of the essential amino acids necessary for healthy individuals." how should alberta be advised? she should consume dairy and egg products at every meal to protect herself against protein deficiency she should avoid the "limiting" amino acids because they are limiting her ability to maintain proper protein status because the statement is basically true, she should consider eating small quantities of meat every day in order to avoid protein deficiency although many foods don't provide all the essential amino acids individually, she could consume complementary proteins throughout the day, which would provide all the essential amino acids she needs

Genetically engineered human insulin is used to treat which disease?