Please help Which statement accurately describes the relationship between weight and mass?

19. scientists use meteorites that hit earth to provide evidence of the composition of earth's interior because they hypothesize that

Creation of an unnaturally uniform sample to represent a diverse populationcan be avoided by: a. including only willing b. asking another scientist for .c. choosing only identical participants.d. selecting individuals at random.

One of the purposes of transcription is to produce a sequence of bases that