[Campbell Biology P.848] Based on the provided image and text for Nerium oleander , which an... | Practice Question

Based on the provided image and text for Nerium oleander , which anatomical feature directly contributes to reducing the rate of transpiration by creating a localized high humidity environment around the stomata?

  • A: Thick cuticle
  • B: Upper epidermal tissue
  • C: Trichomes ("hairs") and crypts
  • D: Lower epidermal tissue

Explanation

The text explicitly states that 'Stomata are recessed in cavities called "crypts," an adaptation that reduces the rate of transpiration by protecting the stomata from hot, dry wind. Trichomes help minimize transpiration by breaking up the flow of air, allowing the chamber of the crypt to have a higher humidity than the surrounding atmosphere.'