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Describe the four membranes in the avian egg. How does EACH membrane affect the developing embryo?
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- Explain the developmental and functional similarities and differences between: Avian amnion and mammalian amnionHow do the amount and distribution of cytoplasm in the fertilized egg influence early development?What exactly is the zona pellucida? Does it make up the plasma membrane, vitelline layer, AND jelly layer of the egg? So it's technically like the extracellular matrix of the egg cell?
- What are three notable features between the fertilized and unfertilized egg?What is the fate of the four extraembryonic membranes in embryos of placental mammals?What four types of cellular processes must occur to enable a fertilized egg to develop into an adult multicellular animal? Briefly discuss the role of each process. C2. The arrangement of body axes of the discuss the role of each process.
- How important is cell adhesion for the development of mammalian embryo?Explain: Is the degenerating blastocoel visible in the frog gastrula? How much yolk protrudes through the blastopore of a frog gastrula How much yolk protrudes through the blastopore of a frog gastrula? Chickens lack a larval stage. How do they compensate for this?Explain the Tissue Stages of Development under Early Stages of Animal Development ?