(Question)
Q: How do you determine the atomic weight of an element? Choices: - multiply protons and neutrons - subtract protons from electrons - divide protons and neutrons - add up protons and neutrons A:
(Answer)
add up protons and neutrons

(Question)
Q: If a human only has 45 chromosomes it is most likely due to a mistake during what? Choices: - testis - mitosis - plexus - meiosis A:
(Answer)
meiosis

(Question)
Q: What branch of biology uses fossils to study life's history? Choices: - morphology - entomology - gerontology - paleontology A:
(Answer)
paleontology