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.
Photosynthesis - Responses of Plants to Stress Photosynthesis is also inhibited due to low water potential in the leaves. The leaf water potential is the sum of turgor pressur
Q. What is Phytates? Phytates are widely distributed in seeds of vegetables, fruits and grains. Unrefined cereals and millets are the richest sources of phytates. Refined or
HIND BRAIN - 1 . CEREBELLUM - Little part, lies below the posterior part of cerebrum & above the medulla oblongeta. It conists of median lobe vermis & 2 lat
classification of grantia
what''s a mature female sheep called
Relation between Tissue and the implant material The biologic interaction between the tissue and the implant material at an interface may result in a variety of phenomena such
Why is the human placenta referred to as haemochorial type? Name the hormone it secretes to facilitate parturition.
Q. What are gametes? Gametes are cells specialized in sexual reproduction and they contain half of the maximum number of chromosomes of the species and unite it with another ga
Q. What are gonads? What are the male and the female gonads in humans? Gonads are the organs that produce gametes they contain the germ cells that undergo division and generate
Osmotic adjustment or Osmoregulation - Osmotic Stress If concentration of soluble matter (in the form of minerals and small organic molecules) builds up in the external medium
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