These questions consist of two statements each, printed as Statement-I and Statement-II. While answering these questions, you are required to choose any one of the following four responses.
Statement-I: The leaves in gymosperms are well-adapted to withstand extreme temperature, humidity and wind.
Statement-II: Unlike bryophytes and pteridophytes, in gymnosperms the male and female gametophytes do not have an independent free-living existence.
Text Solution
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(a) Leaves in gymnosperms are well adapted to withstand extreme temperature, humidity and wind. In conifers, needle like leaves reduce the surface area for water loss. Thick cuticle and sunken stomata are also responsible for reducing water loss in plants.
Unlike bryophytes and pteridophytes, in gymnosperms male and female gametophytes do not have an independent freeliving existence. They remain within the sporangia retained on sporophytes.
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