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Unformatted text preview: Leaves contain waxy substance called a cuticle . The cuticle protects the plant from water loss. Carbon dioxide enters the leaf through the stomata (stoma), an opening. Each stomata is surrounded by two guard cells , which opens and closes the stoma. 1 When stomata are open, carbon dioxide enters the leaf. The oxygen produced during photosynthesis exits the leaf through the stomata. The loss of water from leaves is called transpiration. When more water is lost form a leaf than absorbed through a plants root, the plant wilts. 2...
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