Q: What organism is an important pioneer on cleared rock and soil surfaces, such as volcanic flows and burned forests? Choices: - cysts - algae - pigment - lichen A:
lichen
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Q: The fuel rods are made of a corrosion-resistant alloy that encases the partially enriched uranium fuel; controlled fission of 235u in the fuel produces heat. water surrounds the fuel rods and moderates this? Choices: - half-life - thermal energy - electromagnetism - kinetic energy A:
kinetic energy
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Q: What is the term for a mutually beneficial relationship in which one organism lives inside the other? Choices: - parasite - symbiosis - parthenogenesis - endosymbiosis A:
endosymbiosis
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Q: How many bones fuse together to form the cranium? Choices: - 6 - 3 - 8 - 8 A:
8
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