If a newborn were accidentally given a drug that destroyed the thymus, what would most likely happen? a. his cells would lack class i mhc molecules on their surface. b. his humoral immunity would be missing. c. genetic rearrangement of antigen receptors would not occur. d. his t cells would not mature and differentiate appropriately. e. his b cells would be reduced in number and antibodies would not form.

Select two risk factors for self-harming behavior. a. having high self-esteem b being a teenager or young adult c. being female d. having never abused drugs or alcohol i know its going to be something funny and i'm gonna feel dumb asking it but its for my final test of the semester

Which of the following best reflects what we know about how the flu virus moves between species? a) the flu virus in a pig is mutated and replicated in alternate arrangements so that humans who eat the pig products can be infected.b) a flu virus from a human epidemic or pandemic infects birds; the birds replicate the virus differently and then pass it back to humans.c) an influenza virus gains new sequences of dna from another virus, such as a herpesvirus; this enables it to be transmitted to a human host.d) an animal such as a pig is infected with more than one virus, genetic recombination occurs, the new virus mutates, the virus is passed to a new species such as a bird, and the virus mutates again and can now be transmitted to humans.

Food labels can make claims about the relationship between a nutrient, food, disease or health related condition. for example: calcium prevent osteoporosis.