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

Parts, How many parts of human body?

How many parts of human body?

Determine the central thermoreceptor neurons, Which of the following serves...

Which of the following serves as a sensor, or as part of a sensor, that functions in a negative feedback system? A. Central thermoreceptor neurons whose peripheral terminals ar

Which are the types of neurons, Which are the types of neurons that partici...

Which are the types of neurons that participate in the spinal arch reflex? Where are their cell bodies situated? In the arch reflex first a sensory neuron located in the gangli

Describe coping skill and coping mechanism, Q. Describe Coping Skill and Co...

Q. Describe Coping Skill and Coping Mechanism? Coping Skill is a tool which may be used by individuals in any difficult situation like solving a problem by choosing best soluti

Define application of nutrition knowledge in geld of sports, Define Applica...

Define Application of Nutrition Knowledge in Geld of Sports? By the time you are ready to do this unit, you have been exposed to a good deal of the basic knowledge of nutrition

What are epithelial tissues, What are epithelial tissues? What are their ge...

What are epithelial tissues? What are their general function and how is that function associated to the features of the tissue? Epithelial tissues, also known as epithelia, are

Chromosomes with spindle fiber, Chromosomes with spindle fiber: The kineto...

Chromosomes with spindle fiber: The kinetochore fibers of spindle attach to the kinetochore region (specialized area in centromere) of chromosome, and align them at the equator of

Briefly describe the mechanism, List and briefly describe the mechanisms th...

List and briefly describe the mechanisms that prevent acid-base imbalances from appearing in the body. In addition, indicate where each mechanism functions most significantly.

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