Q: Anaerobic prokaryotes can live without what compound in their environment (it's a compound that people do need to live)? Choices: - carbon - Hydrogen - nitrogen - oxygen A:
oxygen
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Q: What is one of the most common biochemical compounds on earth and is found in all plants? Choices: - carbon dioxide - hydrogen - sulfur - cellulose A:
cellulose
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Q: All chemical changes involve a transfer of what? Choices: - hydrogen - pressure - nitrogen - energy A:
energy
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Q: Where is most of the cell's dna contained? Choices: - vacuole - epidermis - cell membrane - nucleus A:
nucleus
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