Q: These microorganisms are abundant in the human digestive track and serve many roles. what are they? Choices: - antioxidants - pathogens - tumors - bacteria A:
bacteria
------
Q: What do covalent bonds give atoms a more stable arrangement of? Choices: - protons - neutrons - cell walls - electrons A:
electrons
------
Q: An example of beta decay is the emission of an electron by a carbon-14 what? Choices: - molecules - ion - protons - nucleus A:
nucleus
------
Q: What happens if a person doesn't take in enough water to replace the water lost in sweat? Choices: - diarrhea - fatigue - relaxation - dehydration A:
dehydration
------