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.
Emergency Room Management Patient may needs incubation and ventilatory support till such time that patient is able to breathe normally. In some cases: patient is admini
Define about the Glutathione peroxidases - Selenium? The role of selenium in the cytosolic enzyme, glutathione peroxidase (GSHPx), was first illustrated in 1973. Four selenium
Discuss why Obelia is considered to be of special interest in Zoology as an animal showing an intermediate grade of organization.
characterstic of phylum arthropoda
Q. Nutritional Management for gastro oesophageal reflux disease? As mentioned above the nutrient requirements remain the same as per the RDI for most patients. It would be impo
What are toxic effects of lectins or haemagglutinins? Well, these can cause growth inhibition in animals and diarrhoea, nausea, bloating and vomiting in case of human beings. W
ANIMALS THAT ARE PROTOZOA????
Effects on Ecosystem - Air pollutants The effects of pollutants on ecosystem become visible after a long period of exposure. In highly industrialised countries the vegetation
Define Hepatopoietic and immune System - geriatric nutrition? Though the circulating red blood cells or the white cell count or platelet number does not normally change with a
Q. Habitat for the worlds species? Natural ecosystems provide habitat for the world's species. Forests, coral reefs and deep ocean bottoms house many species. Wetlands, through
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