--%>
Assignment Help - homework help

Are the additional embryonic membranes similar

Are the additional embryonic membranes similar in all vertebrates?

E

Expert

Verified

The existence of each additional embryonic membrane differs according to the vertebrate class.

In amphibians and fishes, only the yolk sac is existed. In reptiles and aves in addition to the yolk sac, there are as well the amnion, the chorion and the allantois. In placental mammals besides all such membranes, the placenta is existed too.

   Related Questions in Biology

  • Q : Classification of phylum Arthropoda

    What are the groups into which the phylum Arthropoda is classified? Name the three main ones and a few of their representative species?

    		•
  • Q : Departmental by the customer or service

    Departmental by the customer or service If a company has distinctly different customer groups, it may create department on the basis of the customer differences. For

    		•
  • Q : Substance transport from mother to fetus

    Explain the chief substances which are transferred from mother to fetus through the placenta and from fetus to mother?

    		•
  • Q : Explanation of vaccination Give a brief

    Give a brief explanation of vaccination.

    		•
  • Q : Internal epithelium of the bowel Is it

    Is it possible that the internal epithelium of the bowel remains the same as it was one month ago?

    		•
  • Q : Define Master Schedule Master Schedule

    Master Schedule: It is the process by which a manufacturing operation is executed. The master scheduler is the department or person in a manufacturing plant accountable for scheduling. The master scheduling department might be accountable for all aspe

    		•
  • Q : Importance of organization Importance

    Importance of organization Organization is the back bone of the management is any enterprise. It establishes the relationship on the one hand betwee

    		•
  • Q : Distribution Channel-Retail and SME

    Distribution Channel: At present bank stands at poor distribution channel due to lack of technological advancement. In long term their distribution channel should be close to target market. This can be done by opening agent branched at places where it

    		•
  • Q : Protection of ecosystem from

    How does the large biological diversity protect the ecosystem from environmental damages? Also explain why are less bio-diverse ecosystems are under the risk of suffering of the deep biological harms in case submitted to even small changes?

    		•
  • Q : Why does a price ceiling result in

    Why does a price ceiling regularly result in a deadweight loss? A price ceiling will tend to result into deadweight loss since at any price below the market equilibrium price, quantity supplied will be below the ma

    		•