A. describe three conditions that create opportunities for normal microbiota to become an opportunistic pathogen. b. explain three ways in which a bacterium could gain resistance to an antibiotic. c. you are a food manufacturer and you need to sterilize one of your products: powdered milk contained in a glass jar, what would be the best way to do this? d. explain the mechanism of action of the aminoglycoside group of antibiotics? e. explain two mechanisms which antibiotic resistant bacteria would be using to be resistant? f. ten people a stuck in an elevator with a clumsy scientist who drops a vial containing 11 million cells of dangerous bacteria. when the vial breaks the sample aerosolizes. the id50 of this organism is 5x105 cells and the ld50 is 1x106. how many of these people will potentially get sick and how many could die? explain your answer

Which of the following scenarios is an example of the bottleneck effect? answers a in south africa, much of the afrikaner population is descended from a small number of dutch colonists. in this population, this is an unusually high frequency of pseudoxanthoma elasticum (pxe), an elastic tissue disorder. b four white-tailed deer are introduced to a park in finland. thirty years after their introduction scientists compare the genes in the population and find that there is no variation. c during the industrial revolution, london's air became filled with soot. as a result, birds started eating more of the lighter moths because they were easier to spot than their darker counterparts. over time, the moth population changed so that there were more darker moths than lighter ones. d 10% of the population of american alligators in an area have the recessive trait albinism. a massive flood results in the death of 80% of the population. of the remaining population, 60% have the recessive trait of albinism.

Plz quick a natural resource that is replaceable through a cycle in nature or sustainable practice is called a? the subject is science

About how many years does it take for one cycle of surface water to become deep water and then surface water again in the oceans? 101001,000