Recently, a human trachea ( a respiratory organ) was produced by using a patient's own stem cells. The benefit of using the patients own cells to produce a trachea instead of receiving one from a donor is that (1) there will be more enzymes produced to help maintain homeostasis in the trachea (2) there will be an increase in the quantity of antibodies that the patient produces in (3) there is less of a chance that the patients immune system will attack the trachea (4) response to the new trachea

Secondary succession would most likely be taking place in a(n)

Indica el nombre y la fucion de los vasos sanguineos que entran y salen de los riñones

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.