q what are the extraembryonic membranes present
Q. What are the extraembryonic membranes present in vertebrates?
The extraembryonic membranes that may be present in vertebrates are the yolk sac, the amnion, the placenta, the chorion and the allantois.
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q what are twins genetically what are the two types of twins that can be generatedtwins are at the same time generated within the mothers uterus
q what is polyembryonypolyembryony is the phenomenon in which a single embryo in its initial embryonic stage divides itself forming many new
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q what are extraembryonic membranesextraembryonic membranes are membranous structures that appear in parallel with the embryo and play vital roles in
q what are the extraembryonic membranes present in vertebratesthe extraembryonic membranes that may be present in vertebrates are the yolk sac the
q are the extraembryonic membranes the same in all vertebratesthe presence of each extraembryonic membrane differs according to the vertebrate
q how is the yolk sac formed what is the function of the yolk sacthe yolk sac is formed from the covering of the vitellus by few cells originated
q which is the extraembryonic membrane whose function is to store nitrogen wastes of the embryo is this function present in placental mammalian
q why can the allantois be considered an adaptation to terrestrial lifethe allantois is an adaptation to dry land because in embryos of oviparous
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