Ques: Q: What is the lowest level of organization that can perform all activities required for life? Choices: - organs - nucleii - tissues - the cell A:
Ans: the cell

Ques: Q: Atoms with the same atomic number but different mass numbers are called what? Choices: - tropes - organisms - reactions - isotopes A:
Ans: isotopes

Ques: Q: About one-fourth of the blood pumped with each heartbeat enters arteries serving what organs of digestion? Choices: - stomach - bowels - lungs - intestines A:
Ans: intestines

Ques: Q: What term describes a drug that has an effect on the central nervous system? Choices: - nonaddictive drug - elemental drug - steroidal drug - psychoactive drug A:
Ans:
psychoactive drug