Extraembryonic membranes the same in all vertebrates, Biology

Assignment Help:

Are the extraembryonic membranes the same in all vertebrates?

The presence of each extraembryonic membrane varies according to the vertebrate class.

In fishes and amphibians only the yolk sac is present. In reptiles and birds besides the yolk sac there are also the amnion, the chorion and the allantois. In placental mammals besides all these membranes the placenta is present too.

 


Related Discussions:- Extraembryonic membranes the same in all vertebrates

Name which part of the seed in other monocotyledons, The scutellum observed...

The scutellum observed in a grain of wheat or maize is comparable to which part of the seed in other monocotyledons? 1. Cotyledon 2. Endosperm 3. Aleurone layer 4. Plum

Taxonomy, classification of grantia

classification of grantia

Emboly - mechanism of gastrulation, EMBO L Y - The embolic morphogene...

EMBO L Y - The embolic morphogenetic movements are concerned with the inward migration of prospective endodermal and mesodermal blastomeres from the external surface of blast

Why it is important to study about soil, Why does one need to study about s...

Why does one need to study about soil and what is  its importance? You would be aware that, from the dawn of agriculture, cultivators were attracted to fertile soils of river

Rough and smooth endoplasrnic reticulum, Rough and Smooth Endoplasrnic Reti...

Rough and Smooth Endoplasrnic Reticulum (RER and SER) ER is differentiated into two regions, granular or rough endoplasrnic reticulum (RER) and agranular or smooth endoplasrni

Death, DE A T H - It is terminal end of the degeneration changes of ...

DE A T H - It is terminal end of the degeneration changes of old age. Death occurs when vescular system & respiratory system stop working. Failure of nervous system ma

State the article - one hundred tests, Regarding the article "One Hundred T...

Regarding the article "One Hundred Tests" which of the following is a false statement? A. Genetic tests like the one developed by Counsyl can examine the multilevel genetic net

Hypoglycaemic treatment, Hypoglycaemic coma is a medical emergency. A loss ...

Hypoglycaemic coma is a medical emergency. A loss of consciousness is due to low sugar level. Patient should immediately be given biscuits, chocolates, sweet, fruit. If unconscious

How does plasma membrane regulate, How does a plasma membrane regulate move...

How does a plasma membrane regulate movement of molecules into and out of a cell?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd