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ertype=figure&id=A3743 Animation of shock/hardening

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© 2012 Pearson Education, Inc. Figure 29-7a The First 12 Weeks of Development Future head of embryo Thickened neural plate (will form brain) Axis of future spinal cord Somites Neural folds Cut wall of amniotic cavity Future tail of embryo Week 2. An SEM of the superior surface of a monkey embryo at 2 weeks of development. A human embryo at this stage would look essentially the same. p. 1089

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Figure Growth and Changes in Body Form and Proportion Postnatal Development NeonatalInfancyChildhoodAdolescenceMaturity 1 month2 years18 years Puberty (between 9–14 years) p. 1100

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