Across
- 3. develops into baby chick if fertilized
- 4. thread which tethers yolk
- 6. fine skin which surrounds the whole egg
- 8. white of the egg
Down
- 1. membrane which holds yolk together
- 2. protects inside from germs
- 5. provides chick's first breath of air
- 7. nutrient-rich,feeds baby chick until hatched