Q: Q: Anabolic steroids, a form of the male sex hormone testosterone, are one of the most widely known performance-enhancing drugs. steroids are used to help build what? Choices: - bone mass - nervous tissue - brain tissue - muscle mass A:
A: muscle mass

Q: Q: Sympathetic stimulation also triggers the release of epinephrine and norepinephrine, which enhance both cardiac output and what else? Choices: - vasodilation - inhibition - digestion - vasoconstriction A:
A: vasoconstriction

Q: Q: What is produced during the light reactions in photosynthesis? Choices: - carbon - waste - nitrogen - oxygen A:
A: oxygen

Q: Q: What are sores in the lining of the stomach or duodenum that are usually caused by bacterial infections or acidity? Choices: - lesions - clots - hernia - ulcers A:
A: ulcers