(Question)
Q: What two ways may catalyst be classified? Choices: - oxygenated or heterogenous - reactive or nonreactive - fast or slow - homogeneous or heterogeneous A:
(Answer)
homogeneous or heterogeneous

(Question)
Q: The lymphatic system helps return fluid that leaks from the blood vessels back to what system? Choices: - pulmonary - nervous - peripheral - cardiovascular A:
(Answer)
cardiovascular

(Question)
Q: What are the strongest chemical bonds? Choices: - mutual and stock bonds - weak and ionic bonds - curvature and ionic bonds - covalent and ionic bonds A:
(Answer)
covalent and ionic bonds