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.
Define Laser Tweezers Technology? In addition to above said classical methods, advance technologies can be used for obtaining pure cultures. Laser tweezers technology is useful
Bacteria, mutations, recombination, evolution, and adaption, how are all these related; must be written in two sentences.
Q. What is Sick Sinus Syndrome? Ans. When a slow resting pulse fails to accelerate normally with exercise, it has been labeled chronotropic incompetence, however, there i
Blood Pressure Blood pressure may be defined as the force or pressure which the blood exerts on the walls of the artery. Blood pressure varies with the age of the individual. B
Advantages of Tissue Valv es Need for anticoagulation therapy is only for a short duration in xenograft and only there is rare need for anticoagulation therapy in au
NE R VE IMPULSE (IT'S GENERATION) - It is an electro chemical phenomenon manifested through ionic movement across cell membrane. It was discovered by A. L. Hodykin & A
i want mechanism
Demonstration of immune responses and biomarkers: This may be done either on the basis of sero-conversion study on paired sera samples or by challenge (protection) test.
Gene repressor proteins which inhibit the transcription of particular genes in eukaryotes also exist. They may act by binding either to control parts within the promoter region nea
Select all that are true: Plants do not have mitochondria, they have chloroplasts to convert the sun's energy into chemical energy via photosynthesis and do not need to make ATP us
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