Q: Q: An element is defined by the number of ____ it contains? Choices: - particles - neutrons - electrons - protons A:
A: protons

Q: Q: Biotechnology uses what to solve problems? Choices: - psycology - ecology - geology - biology A:
A: biology

Q: Q: The stomach mucosa's epithelial lining consists only of surface mucus cells, which secrete a protective coat of what? Choices: - bile mucus - phosphate mucus - acidic mucus - alkaline mucus A:
A: alkaline mucus

Q: Q: What elements have the highest attraction for electrons? Choices: - gases - metals - carbons - nonmetals A:
A: nonmetals