OBJECTIVE FORESTRY

FORESTRY

PLANT AND WOOD ANATOMY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
These are adaptations trees have made to survive in hot, dry climates:
A
Small leaves, Sunken stomata & thick cuticle
B
large leaves and cuticle
C
thin bark, small leaves & small crown
D
None of the above
Explanation: 

Detailed explanation-1: -Xerophytes are plants which can survive in dry or desert regions, i.e. with little water. Sunken stomata ensure less water loss, thus reduces the rate of transpiration. Hence, these are characteristically found in xerophytes.

Detailed explanation-2: -These stomata have developed as an adaptation for plants growing in water-scarce conditions. They protect the loss of water from the plants by preventing the escape of water vapor due to the air currents or transpiration. The small pit size hinders the escape of water.

Detailed explanation-3: -Plants that are adapted to very dry environments are called xerophytes. Their adaptations may help them increase water intake, decrease water loss, or store water when it is available. Plants called epiphytes grow on other plants. They obtain moisture from the air and make food by photosynthesis.

Detailed explanation-4: -Nerium, Pine, Acacia, and other plants with SUNKEN STOMATA. Plants that thrive in xerophytic environments have sunken stomata to lower the rate of transpiration. For example, Pinus, Dracaena, Yucca, and Opuntia.

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