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Section 1: Science (Questions 1–30)
1. What is the function of the alveoli in the respiratory system?
o A) Produce red blood cells
o B) Facilitate gas exchange
o C) Filter air
o D) Store oxygen
Answer: B) Facilitate gas exchange
2. Which macromolecule is primarily responsible for storing genetic information?
农业和医学提供了重要启示。
o A) Lipids
o B) Proteins
o C) Nucleic acids
o D) Carbohydrates
Answer: C) Nucleic acids
3. What is the main function of the kidneys in the urinary system?
o A) Store urine
o B) Regulate blood pressure
o C) Filter waste from the blood
, o D) Produce insulin
Answer: C) Filter waste from the blood
4. Which part of the heart pumps oxygenated blood to the body?
o A) Right atrium
o B) Right ventricle
o C) Left atrium
o D) Left ventricle
Answer: D) Left ventricle
5. What type of muscle tissue is found in the walls of internal organs?
o A) Skeletal
o B) Cardiac 农业和医学提供了重要启示。
o C) Smooth
o D) Voluntary
Answer: C) Smooth
6. What is the primary function of the small intestine?
o A) Absorb nutrients
o B) Store bile
o C) Produce digestive enzymes