In lubeck, germany, in 1930, a group of 251 infants was accidentally administered a tainted vaccine for tuberculosis that contained live mycobacterium tuberculosis. this vaccine was administered orally, directly exposing the infants to the deadly bacterium. many of these infants contracted tuberculosis, and some died. however, 44 of the infants never contracted tuberculosis. based on your knowledge of the innate immune system, what innate defenses might have inhibited m. tuberculosis enough to prevent these infants from contracting the disease?
Answers: 1
Biology, 21.06.2019 19:30, Imagine2013
Select the correct answer. in the image, if the washcloth represents consumed food, which organ of the digestive system correctly represents the action performed by the hands? hands squeezing water from a washcloth a. esophagus b. large intestine c. liver d. mouth
Answers: 2
Biology, 22.06.2019 02:00, badpotterchris
How is ribosomal rna useful as a molecular clock? a. a large portion of the dna ring is not vital to structure or function, allowing it to accumulate neutral mutations. b. its rate of mutation increases over time as organisms continue to evolve and differentiate from each other. c. a slow mutation rate makes it useful for determining evolutionary relationships between ancient species. d. it is only found in select organisms, making it easier to compare relationships between species that have it.
Answers: 1
Biology, 22.06.2019 03:00, ultimatesaiyan
Johnny rode his bike 4 blicks down the street to his friend's house once he got to his friend house and realized he could not cone out to play he turned aroubd and went back home. what is displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point
Answers: 1
Biology, 22.06.2019 04:30, Lindsay882
Why are scientists concerned about the depletion of the ozone levels in the stratosphere?
Answers: 2
In lubeck, germany, in 1930, a group of 251 infants was accidentally administered a tainted vaccine...
Mathematics, 12.02.2021 19:30
Mathematics, 12.02.2021 19:30
Spanish, 12.02.2021 19:30