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Question
Assertion :Pneumatophores are specialized root structures that grow out from the water surface Reason: In mangrove environment oxygen in soil is very less
Assertion :Pneumatophores are specialized root structures that grow out from the water surface Reason: In mangrove environment oxygen in soil is very less
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Solution
The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
The root of some plants growing in saline marshes (mangrove plants) suffers from a lack of oxygen. This is due to the waterlogged condition of the soil. To cope with the situation some root branches grow vertically upward and become negatively geotropic and bear many minute pores called nematodes toward their upper end and help in gaseous exchange.So the correct option is 'Both Assertion and Reason are correct and Reason is the correct explanation of Assertion'.
The root of some plants growing in saline marshes (mangrove plants) suffers from a lack of oxygen. This is due to the waterlogged condition of the soil. To cope with the situation some root branches grow vertically upward and become negatively geotropic and bear many minute pores called nematodes toward their upper end and help in gaseous exchange.
So the correct option is 'Both Assertion and Reason are correct and Reason is the correct explanation of Assertion'.
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