To determine: The major theme among the relationship of structure to function, information flow, pathways that transform energy and matter, interactions within biological systems, or evolution, that is evident and related with the statement, “The environment exerts a selective pressure on how many stomata the leaf cells of a plant species will have”.
Introduction: The stomata of leaf cells can open and close to manage the respiratory rates. In many plants, stomata are open during day time that permits CO2 to go into the leaf from the atmosphere and thus keep photosynthesis going when sunlight is available. During night, there is no photosynthesis occurs, there is no need of CO2, the plants then close their stomata, save the water.
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Campbell Essential Biology with Physiology (6th Edition)
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