Q: How do you calculate the atomic mass of an element? Choices: - add neutrons and electrons - count the electrons - multiply protons by neutrons - add the protons and neutrons together A:
add the protons and neutrons together
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Q: Gain or loss of what causes an atom to become a negatively or positively charged ion? Choices: - protons - neutrons - nucleus - electrons A:
electrons
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Q: Terrestrial biomes are classified by the climate and their what? Choices: - habitat - pollution - geography - biodiversity A:
biodiversity
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Q: In most crustaceans, what two structures fuse to form a cephalothorax? Choices: - foot and toes - body and shoulders - wing and legs - head and thorax A:
head and thorax
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