File:Crocodile Egg Diagram.svg
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| Description |
English: 1. eggshell 2. yolk sac 3. yolk (nutrients) 4. vessels 5. amnion 6. chorion 7. air space 8. allantois 9. albumin (egg white) 10. amniotic sac 11. crocodile embryo 12. amniotic fluid The eggshell (1) protects the crocodile embryo (11) and keeps it from drying out, but it is flexible to allow gas exchange. The chorion (6) aids in gas exchange between the inside and outside of the egg. It allows carbon dioxide to exit the egg and oxygen gas to enter the egg. The albumin (9) further protects the embryo and serves as a reservoir for water and protein. The allantois (8) is a sac that collects the metabolic waste produced by the embryo. The amniotic sac (10) contains amniotic fluid (12) which protects and cushions the embryo. The amnion (5) aids in osmoregulation and serves as a saltwater reservoir. The yolk sac (2) surrounding the yolk (3) contains protein and fat rich nutrients that are absorbed by the embryo via vessels (4) that allow the embryo to grow and metabolize. The air space (7) provides the embryo with oxygen while it is hatching. This ensures that the embryo will not suffocate while it is hatching. |
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| Author |
Amelia P. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:09, 21 May 2013 | | 512 × 384 (417 KB) | Catsloveme207 (talk | contribs) | {{Information |Description= |Source= |Date= |Author= |Permission= |other_versions= }} |
| 12:09, 20 May 2013 |  | 512 × 384 (210 KB) | Catsloveme207 (talk | contribs) | User created page with UploadWizard |
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