Which of the following represents osmoregulatory steps taken by hydrophytes?
Correct answer: A. Increases transpiration by increasing the surface area of the leave.
- A. Increases transpiration by increasing the surface area of the leave.
- B. Small and thick leaves to decrease the surface area proportional to the volume of the leave.
- C. Stomata closing in sufficient supply, and opening in restricted supply of water.
- D. None of these
Explanation
Hydrophytes commonly have broad leaves with a large surface area, supporting rapid transpiration and gaseous exchange in their water-rich environment. The likely distractor is small, thick leaves, which are adaptations of xerophytes that reduce water loss in dry habitats.
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About Excretion
Excretion removes metabolic wastes such as carbon dioxide, urea and excess salts, and differs from egestion, which removes undigested food. Questions cover kidney structure, nephron ultrafiltration, selective reabsorption and urine formation, along with the excretory roles of the lungs, skin and liver in maintaining homeostasis.
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