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Questions and Answers
What is the primary function of the guard cells in plants?
What is the primary function of the guard cells in plants?
- To transport water and minerals through the xylem
- To excrete waste products through filtration
- To distribute sugar and nutrients through the phloem
- To regulate the opening and closing of stomata for osmoregulation (correct)
What is the primary strategy used by marine animals to regulate their internal balance?
What is the primary strategy used by marine animals to regulate their internal balance?
- Active transport of salts out of their body (correct)
- Filtration
- Reducing urine production to conserve water
- Excreting dilute urine
What is the main function of the xylem in plants?
What is the main function of the xylem in plants?
- To perform gas exchange
- To distribute sugar and nutrients
- To transport water and minerals (correct)
- To filter waste products
What is the main function of the phloem in plants?
What is the main function of the phloem in plants?
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What is the primary function of the lungs in humans?
What is the primary function of the lungs in humans?
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What is the function of the renal vein in the human kidney?
What is the function of the renal vein in the human kidney?
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