مصادر الصور
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(3-1) A spandrel
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(5-1) Local populations of Ensatina eschscholtzii (Redrawn with permission. American Society of Ichthyologists and Herpetologists (ASIH)).
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(5-2) Phylogeny of the major primate groups
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(5-3) Reptilia
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(6-1) Mendel’s experiment
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(6-2) DNA is composed of two strands
