| 31. | The sand-dune marram grass has rolled leaves with stomata on the inner surface.
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| 32. | Stomata therefore play the important role in allowing photosynthesis without letting the leaf dry out.
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| 33. | Thus, infection occurs only on the underside of leaves, where stomata are found.
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| 34. | Adaptations include thick cuticles, rolled leaf margins, sunken stomata or lacking leaves altogether.
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| 35. | C3 and C4 plants ( 1 ) stomata stay open all day and close at night.
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| 36. | Bacteria typically enter the fruit through their stomata, three to four weeks after fruit set.
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| 37. | As the fruit develops, wax fills and blocks stomata, eliminating entry to the bacteria.
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| 38. | The plant obtains water not from its host plants, but through stomata in its leaves.
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| 39. | Environmental conditions affect the development of stomata, in particular their density on the leaf surface.
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| 40. | In very dry soil, plants close their stomata to reduce transpiration and prevent water loss.
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