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Determine in detail about four extraembryonic membranes of amniotic eggs of birds as well as other reptiles and to explain their functions.
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- Contrast early development, including cleavage, in the echinoderm (or in amphioxus), the amphibian, and the bird, paying particular attention to the importance of the amount and distribution of yolk.Explain how the flat embryonic disc takes on the cylindrical shape of a tadpole.Compare and contrast the development process of the starfish and the sea urchin.
- With an help of properly illustrated drawings, explain the difference in the development of blastocoels in birds and Eutherian mammals.Contrast the development of young in fish and amphibians.Describe the gastrulation by using embryos of the sea star as an example.And describe the way in which the mass of inert yolk influences the gastrulation in bird and frog embryos.
- Draw and describe the stages of embryonic development of chordates. Cleavage Gastrulation Neurulation OrganogenesisDescribe external fertilization process of sea urchin egg with diagramUsing sea star embryos as an example, describe gastrulation. Explain how the mass of inert yolk affects gastrulation in frog and bird embryos