441. Human population growth is greatest in developing countries because?
A: The death rate is high in developing countries.
B: The birth rate is high in developing countries
C: Much of the population has already reached the childbearing age.
D: Most of the world’s population lives in industrialized countries.
442. An example of an abiotic component _?
A: Soil
B: Plants
C: Animals
D: Bacteria
443. Who invented Logarithm Tables?
A: John Doe
B: John Napier
C: John Harrison
D: John Douglas
444. Isotopes of an element have the same number of __?
A: Protons
B: Neutrons
C: Electrons
D: Beta rays
445. What has no charge, and is one of the fundamental particles making up an atom’s nucleus?
A: Neutron
B: Electron
C: Proton
D: All of Above
446. A man can survive without food for at least?
A: 2 months
B: 1 month
C: 3 months
D: 4 months
447. A tight-rope walker carries a long pole which he holds across his body. The purpose of this pole is to_____?
A: Spread out his weight and reduce the pressure on the rope
B: Prop him up if he falls
C: Add extra weight to keep the rope tightly stretched
D: Keep the Center of gravity always above vertically above the rope
448. Which of these is not a region of the spinal cord?
A. Thoracic
B. Pelvic *
C. Lumbar
D. None of these
449. The shape of the external ear is due to:
A. Elastic cartilage
B. Fibrocartilage
C. Articular cartilage
D. None of these
450. The external surface of the stomach is covered by:
A. Mucosa
B. Serosa
C. Parietal peritoneum
D. None of these
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