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R1. Name structure and germ layer origin A: Somites and Mesoderm. R2. Name structure and germ layer origin A: Optic Cup and Ectoderm. R3. What is this structure and what stage of development are we at A: Structure is the yolk sac and we are at the Blastula stage.
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R1. Name structure and germ layer origin A: Somites and Mesoderm R2. Name structure and germ layer origin A: Optic Cup and Ectoderm R3. What is this structure and what stage of development are we at A: Structure is the yolk sac and we are at the Blastula stage.
R4. Name process which allows ectoderm of zebra fish to pass over yolk sac during gastrulation A: Epiboly R5. Name germ layer origin for this tissue A: Ectoderm. This is pointing at the epidermis of the embryo R6. What specific tissue leads to the formation of this body structure. A: Looking for Neural Crest cells here. Ectoderm would get partial credit since that is the correct germ layer.
R7. What is this called? A: Primative streak R8. What is the name of the entire structure shown here? Hint: It’s not embryo A: Neural Plate R9. Name structure and germ layer origin A: Optic Cup and Ectoderm (geesh another Eye one…I should have made this difficult)