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!
Class Bivalvia
Body in a bilohed mantle enclosed in a two-valved shell; head reduced; mouth with labial palps but no radula; foot wedge-shaped; plate-like gills; sexes separate; trochophore and veliger larvae. Class Bivalvia is as well known as Pelecypoda or Lamellibranchia. It includes clams, oysters and muscles. The body of these molluscs is laterally compressed and the shell is made up of two valves hinged dorsally. The shell covers the body completely. The foot of the animal is also laterally compressed. Bivalves have mainly spacious mantle cavity among the molluscs. The large gills that are enclosed in the mantle cavity function like organs of gas exchange and food gathering apparatus producing ciliary currents assisting in filter feeding. Bivalves do not have a distinct head or radula. Most of the bivalves burrow in the bottom of fresh water bodies or sea and the body is properly modified for such a habitat. But there are other forms which have .taken to other modes of life also.
There are three methods of collections: 1. Kerbside collection: In this collection system the refuse is brought in containers and placed on the footway, from where it is
Vasoactive substances such as Endothelium Derived Relaxing Factors (EDRF). Prostacyclin and Endothelin can be formed in the vascular endothelium. Endothelial dysfunction can lead t
ATP-sensitive potassium channel? A. In smooth muscle cells surrounding an arteriole serving a region of the body that has just recently had very high levels of cellular acti
Mitral Valve Replacement : When mitral valve replacement for a calcified, stenotic valve is done, usually it is a classical procedure removing leaflets, their chordae an
Explain the History of Animal Taxonomy? The beginning of animal taxonomy was made by Aristotle (384-322 B.C.). He extensively studied about anatomy, embryology, habit and ecolo
What is Hemorrhage Mild to moderate capillary ooze can readily be controlled by pressure packing. A more severe venous or, in rarer instances, an arterial bleed may require cl
Define Uptake of iron by enterocytes - Non Haem Iron Absorption? Ferrous iron traverses the brush border of the intestine better than the ferric iron. The mechanism of absorpti
What is Anti-arrhythmic pacemaker defibrillators ? Antiarrhythmic drugs (AADs) are classified according to whether they exert blocking actions predominantly on sodium, potassiu
Tina administered 1 liter of sterile distilled water IV to a patient. Predict the direction (increase, decrease, no change) you would expect Tina's infusion to have produced in the
Techniques of Plant Tissue Culture A standard tissue culture laboratory should provide facilities for washing and storage of glass ware, preparation and storage of nutrient
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