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ANATOMY OF FLOWERING PLANTS

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  What is Plant Anatomy? Plant anatomy is the study of internal structure and organization of tissues in plants. It helps in understanding: Functional adaptation Transport system Growth patterns Tissue Organization in Flowering Plants Flowering plants have three major tissue systems :  Epidermal Tissue System Components: Epidermis Single layer of compact cells No intercellular spaces Covered by cuticle (except roots) Cuticle Made of cutin Prevents water loss Stomata Present mainly on leaves Composed of guard cells Regulate: Gas exchange Transpiration Root hairs Extensions of epidermal cells Increase surface area for absorption Trichomes (in stem) Hair-like structures Protection + reduce transpiration  Functions: Protection Water conservation Gas exchange 🌿 B. Ground Tissue System  Types of Ground Tissue: 1. Parenchyma Living cells, thin cell wall Large vacuole Functions: Storage Photosynthesis ( chlorenchyma ) Air storage ( aerenchyma ) 2. Collenchyma Living cell...
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The Silent Crisis of Lead Toxicity in India: Understanding Its Impact and the Way Forward

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 Lead toxicity is a silent public health crisis that disproportionately affects young children, impairing their physical and cognitive development. Despite the global effort to reduce lead exposure, India faces a monumental challenge, with over 275 million children exhibiting elevated blood lead levels above the World Health Organization's (WHO) actionable threshold of 5 µg/dL . Alarmingly, 64.3 million children have blood lead levels exceeding 10 µg/dL , indicating a pressing need for intervention. What Is Lead Toxicity and Why Is It Dangerous? Lead toxicity occurs when lead accumulates in the body, often through ingestion or inhalation. For children, even low levels of lead can cause irreversible damage, including: Cognitive impairments: Reduced IQ, learning disabilities, and attention disorders. Behavioral problems: Increased hyperactivity and aggression. Physical health issues: Delayed growth and development, weakened immunity. In pregnant women, lead exposure can cross th...
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