Which scientific or technological advance did not take place in the first fifteen years of the twentieth century?
a) albert einstein's theory of relativity
b) wireless communication across the atlantic
c) the creation of the internet
d) the invention of the airplane
e) the mass production of cars

When harry describes hans as having a naive face which appeared very quick and intelligent, this can be considered a what? metaphor paradox ironic statement symbol

Which piece of evidence would best support reason #1? othe history of using animals for research extends asfar back as 322 bce, when early greek physician-scientists, such as aristotle and erasistratus, performed various experiments on living animals. animal research played an essential role in thedevelopment of herceptin and tamoxifen, twomedications that have already saved the lives ofthousands of women who have been diagnosed withbreast cancer. even those who believe in testing on animals when it is hnecessary for vital medical research practice what isknown as "the 3 rs-reduction, refinement, andreplacement to reduce the number of animals usedfor testing. biologists believe that chimpanzees share at least 98.4percent of the same dna as humans and gorillas shareat least 97 percent, making primates a popular andlikely choice for the testing of products intended for humans

What is the meaning for a real looloo