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        <div class="tag">① Baseline</div>
        <div>Hemoglobin binds oxygen molecules at four iron-containing heme sites, transporting O₂ throughout the circulatory system.</div>
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Analyzing Structural Architecture in Scientific Expositions

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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
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  <title>Scientific Architecture Diagram</title>
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        <span>✕</span> Misconception
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            <span id="errPara1Label">Mendel</span>
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        <span>✓</span> Accurate Reading
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<!DOCTYPE html>
<html lang="en">
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</head>
<body>

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        <span class="icon">▲</span> 4. Boundary Conditions
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        <span class="icon">◆</span> 3. Qualifying Nuance
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        <span class="icon">⚙</span> 2. Mechanistic Engine
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        <span class="icon">■</span> 1. Foundational Baseline
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        <span class="card-tag" id="cardTag" style="background:#e0f2fe; color:#0369a1;">Tier 1 · Anchor Rule</span>
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        Hemoglobin binds oxygen molecules in the lungs to transport them through the bloodstream.
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OGE.11.RI.2

Aligned learning resources

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