Which best describes the two types of shared characteristics?

1 - characteristics that remain in the common ancestor and the modern organism
2 - characteristics that are new and have been modified from what was found in the common ancestor
1 - characteristics that are new in the common ancestor and the modern organism
2 - characteristics that have been modified from what was found in the common ancestor
1 - characteristics that have been modified in the common ancestor but not in the modern organism
2 - characteristics that are new in both the common ancestor and the modern organism
1 - characteristics that remain in the common ancestor and the modern organism
2 - characteristics that are new in both the common ancestor and the modern organism

In this case, the statement that people who exercise for an hour may have lower cholesterol levels is .

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.

Which best describes carbon dioxide’s path out of the body