Monarch butterflies
Mexico during the fall in the winter
they
Oyamel fir trees

Vvnici prece di evidence would best support teason #to the 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.0 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 isnecessary for vital medical research practice what isknown as "the 3 rs"-reduction, refinement, andreplacement to reduce the number of animals usedfor testingbiologists 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

79 one theme in stowe’s uncle tom’s cabin is a)circle of lifeb)true christianityc)american ideals and realityd)families destroyed by slavery

Which theme is best supported by the descriptive detail in this passage from my antonia