Which item most likely symbolizes a new idea?
a. a four-leaf clover
b. a lighting storm
c. a snake
d. a lightbulb

Can you answer number 5 for me . hurry

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

Chan was leading a group discussion in his university. he discovered that a few participants were dominating the discussion and not letting others speak. what should chan do in such a situation a. chan should allow participants to speak until they are finished b. chan should adjourn the discussion and recommence at a later point c.chan should bar the dominant participants have the freedom to share their opinion d.chan should ensure that all participants have the freedom to share their opinion e.chan should restructure the group so that the dominant participants are isolated