Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Metameric segment - Segmentation
On the other hand true metameric segment as best observed in annelids has separate schizocoelic body cavity of mesodermal origin in each segment. Individual segments are budded off in linear sequence from a proliferation region just in front of the posterior end. Segmented animals have a specialized anterior acron (prostomium) and posterior pygidium or telson both of which are not segments. In between there are a varying number of segments.
In near perfect segmentation, appendages, musculature, ganglion, nerves, blood vessels, coelom and all body organs are replicated in each segment. This arrangement is best seen in annelids. In chordates, segmentation is usually apparent in the axial skeleton. Muscles and nerves. Why did segmentation evolve in animal groups? What advantages does it confer on the animals in which it is seen? Let us examine this a little closely. The most important advantage is that segmentation divides a body into a series of compartments, each of which can be regulated almost independently. This in a way provided the framework for specialization. In colonial animals this specialization is seen in polymorphism of zooids while in segmented animals regional specialization of segments occurs.
Q. Can you define P-Waves? Changes in P-wave morphology have been well described in resting tracings and are very useful in identifying right and left sided hemodynamic alterat
Of which type of tissue is the heart made? How is this tissue oxygenated and nutrified? The heart is made of striated cardiac muscle tissue. The heart muscle is known as the my
LOCOMOTIO N IN OCTOPUS - From the ends of arms or ex-current siphon water is throughn with speed, opposite to it animal moves.
Q. What are the morphological, chemical and functional similarities and differences between peroxisomes and lysosomes? Similarities: Peroxisomes and lysosomes are small membran
What do you mean by Post-Herbal Period ? Ans. It is difficult to draw a sharp line of demarcation between the transition period, marked by various attempts of classificati
Pathophysiology Insufficient amount of iron present in the body leads to reduction in serum transferrin (Serum betaglobulin, which binds and transports iron) saturation. T
Bacteria: Bacteria have a protective covering called 'cell wall'. Beneath this. there is a plasma membrane which encloses protoplasm of the bacterium containing various types
Class Gastropoda Body asymmetrical, depicts torsion or its effects; shell coiled in most, well developed head with radula, large flat foot, gills one or two or with pulmonary
What is Eukaryotic Cells ? Eukaryotic Cells : Most cells of higher organisms, and many unicells, contain a nucleus. Organisms whose cells contain a nucleus are called euka
Explain the Etiology and Clinical Features of Parkinson's disease? The cause of Parkinson's is unknown. Genetic predisposition (in most cases the reason for the death of these
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd