Word Count : 188

---

The blastoderm is the outer layer of cells that forms during the early stages of embryonic development in vertebrates. It is derived from the fertilized egg and surrounds the yolk in species that exhibit a yolk-rich egg, such as birds and reptiles. In mammals and other species ___ __________ _________ _______ ______ _________ ___ __________ ______.
____ ________ _________ _______ ____ ____ ________ ___ ________ __________ ____.
_______ ________ __________ ________ _______ _____ __________ __________.
___ ________ _______ ______ _____ ____ _____ ________ ___ ________.
_______ ____ ________ ________ _________ _________ _______ ________ __________.
___ __________ ________ ________ _____ _____.
____ __________ ____ _____ __________ ___ _____.
_______ ______ ___ _______ _________.
__________ __________ ______ _____ ___ _________ ____ ____.
_________ _____ ____ ________ _________ __________ __________ ______ _____ _______ __________ ________.
__________ ________ ___ ____ _______ ________ _________ _______.
__________ _______ _________ _________ _________ _____ ______ _________.
_______ ____ ______ __________ __________ _____ ___.
_______ ___ __________ __________ _______ ____ _____ _________ _____ ___.
_____ _______ _______ ______ __________ _______ __________ _______ _______ _________ __________.
____ ______ _________ _____ ________ ______ ____.
___ __________ ________ _______ ___.
Get Full Answer on WhatsApp