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

Zoology, what are the excretory organ of protozoa ?

what are the excretory organ of protozoa ?

Elaborate immune response system and their categories, Elaborate Immune Res...

Elaborate Immune Response system and their categories? The immune response is a group of defenses that the body has developed to combat disease-producing agents, or pathogens.

What is the nucleolus, What is the nucleolus? The nucleolus is a small ...

What is the nucleolus? The nucleolus is a small and optically dense region in the interior of the cell nucleus. It is made of ribosomic RNA (rRNA) and proteins. Single nucleus

Discuss about the common migraine, Discuss about the Common migraine Th...

Discuss about the Common migraine This is the most frequent type, occurring in more than 80% of migraine sufferers. There is no clear aura as there is in classic migraine, but

Which are the most important inorganic molecular substances, Q. Which are t...

Q. Which are the most important inorganic molecular substances for living beings? Ans. The most important inorganic substances for living beings are mineral salts, water,

Porifera, Classify phylum porifera with examples

Classify phylum porifera with examples

Phylum porifera, harmful and beneficial usesa of phylum porifera

harmful and beneficial usesa of phylum porifera

Explain the bioavailability of vitamin d, Explain the Bioavailability of Vi...

Explain the Bioavailability of Vitamin D? The nutritional availability of vitamin D is less significant because it can be endogenously produced and retained for long periods by

Atypical distribution of pleural fluid, Q. Atypical Distribution of Pleural...

Q. Atypical Distribution of Pleural Fluid? i) Lamellar effusion: These are shallow collections of fluid between the chest wall and the lung surface. ii) Subpulmonic

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