Individual development in animals

In this topic

• What is ontogeny?
• The embryonic period
• Direct and indirect development
• Complete and incomplete metamorphosis in insects

Key terms

• Ontogeny
• Zygote
• Cleavage
• Blastula
• Gastrula
• Embryonic period
• Post-embryonic period
• Metamorphosis
• Larva
• Pupa
• Tadpole
• Direct development

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