What are alu elements? why are they significant?

What is the process of pulling apart an n2 molecule nevermind i got it

The many stone tools, fragmentary animal bones, and teeth found at gran dolina, spain, indicate that hominids there? a. processed and consumed animals and other hominids. b. did not differ appreciably from earlier asian homo erectus. c. were similar to later homo sapiens. d. none of the above

If there is another new infectious disease somewhere in the world, what do you think canadian officials should do