Is this a metaphor?

"I held onto the railing as if my life depended on it."

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 do u think u might go with a bestfriend that u don’t do with everyday friends( school friends)

Read these sentences from the first section of the article. because of this novel characteristic which singles out washington from other cities, coupled with the fact that the trees are now in full splendor, a short history of their appearance in the capital city is of interest. the first cherry trees were planted in washington by mrs. taft's request on april 4, 1909, just a month after she first made her home in the white house. what is the most likely reason why cobb includes these sentences in the first section? a- to establish himself as a credible authority on the topic of cherry trees b- to state the central idea and begin the narrative of how the trees arrived in washington, d. c. c- to create a sensory image for readers who are not familiar with cherry trees d- to build suspense as to how so many cherry trees arrived in washington, d. c.