Q: Spores are the basic reproductive units of what organism? Choices: - mushrooms - yeast - tropical plants - fungi A:
fungi

Q: What part of a plant, which is attached to its stem nodes, is the "main organ" of photosynthesis? Choices: - flowers - roots - spores - leaves A:
leaves

Q: Q: Dependent on the frequency of sound waves, what term described how high or low a sound seems to a listener? Choices: - curve - wavelength - direction - pitch A:
A: pitch

Question: Q: How many underlying principles does the science of biology have? Choices: - five - three - eleven - four A:
Answer: four

*Question*
Q: What phenomenon is primarily the result of plate tectonic motions? Choices: - eruption - tsunamis - volcanoes - earthquake A:
**Answer**
earthquake

(Q).
Q: What is the process in which a solid changes directly to a gas called? Choices: - condensation - solidification - vaporization - sublimation A:
(A).
sublimation