Q: How many pathways do plants have for carbon fixation? Choices: - one - four - two - three A:
three
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Q: What type of energy of a system is the sum of the kinetic and potential energies of its atoms and molecules? Choices: - external energy u - primary energy u - deep energy u - internal energy u A:
internal energy u
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Q: Chemistry and physics are fields in what type of science? Choices: - Meteorology - Biology - Botany - physical A:
physical
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Q: Virtually all aquatic organisms depend directly or indirectly on what for food? Choices: - prokaryotes - growths - ground beef - protists A:
protists
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