Which statement is correct?
the number of electrons of a neutral atom always equals the number of protons.
the number of neutrons always equals the number of protons.
the number of neutrons always equals the number of electrons.
atomic weight is identical to atomic mass.

Ageologist determines that a sample of a mineral cant be scratched by a steel nail but can be scratched by a masonry drill bit based on this information the sample mineral has to be softer than

This class has taught you that the use of science and medicine in practical ways has become an international endeavor. one of the greatest examples of an international science accomplishment is which allows the profiling of human dna, useful not only to science but also medicine. a) forensic science b) the fbi c) the human genome project d) bioterrorism

Select the correct answer from each drop-down menu proteins are