Ihave to match these up? 60 points

Arrange the events in chinese history in chronological order using the numbers 1-4. the ming dynasty falls to the qing. china experiences a 400-year period of peace known as the pax sinica during the han dynasty. a golden age of expansion and culture occurs during the tang dynasty. nationalists and communists fight a civil war for control of china.

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

In these frames, the author emphasize the challenges lqbal faced by showing