Ques:Q: What are the pyramid-shaped, paired organs that are connected to the trachea by the right and left bronchi? Choices: - kidneys - stomachs - ovaries - lungs A:

Ans:lungs
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Ques:Q: What is the most abundant biochemical compound? Choices: - soil - methane - tissue - cellulose A:

Ans:cellulose
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Ques:Q: Human mammary glands can produce what substance, which can be used to feed children? Choices: - edema - urea - sperm - milk A:

Ans:milk
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Ques:Q: Interconnected pathways through which carbon is recycled through the biotic and abiotic components of what? Choices: - atmosphere - ozone - hemisphere - biosphere A:

Ans:
biosphere
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