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!
Protonephridia and Metanephridia
Nephridia take place in two major forms - the protonephridium and metanephridium. Protonephridia are found in flat worms. The protonephridial canals end blindly in structures called flame cells or solenocytes internally. Flame cells comprise central cavities that are continuous with the cavities of tubules and consist of a bunch of cilia - the flame. Actually, the flame cell interdigitates along with the first cell of the tubule, by means of finger shaped processes. In solenocytes, the cell lumen is prolonged into a delicate tube and the flame is reduced to a single flagellum. Flat worms usually have a pair of protonephridia. The protonephridial canals are much branched bearing flame ceIls at the end of branches. The flame cells are found scattered during the parenchyma. The flame cells do the filtration; the filtered fluid is propelled by flagella. The nephridiaI epithelium performs the functions of reabsorption and secretion. These physiological mechanisms are comparable with those performed by a vertebrate kidney.
Which are the beings that form the kingdom Animalia? What are the two big groups into which this kingdom is divided? The kingdom Animalia is the animal kingdom. Commonly the ki
The part of human brain which is a significant relay station for the sensory impulses and also is the origin of many of the involuntary acts of eye such as narrowing of the pupil i
Monocotyledonous Embryo The early development of the proembryo in monocots follows the same pattern as in the dicots. However, at the time of differentiation in the globular
Epidemiology Infection is transmitted by direct contact between infected domestic and wild animals and susceptible livestock; by arthropod vector (Phlebotomus, Aedes and Cul
multiple choise question
EXCRETIO N IN AMOEBA - NH 3 is excreted out through plasmalemma. Osmoregulation takes place by contractile vacoule, generally one, towards posterior end, contractile in
Phosphorus Cycle - Nutrient Cycles Phosphorus is a very important nutrient because of its role in the form of phosphate, in reactions that store and release energy. The availa
What is the monohybridism? The Monohybridism is the study of only one characteristic in the crossing of two pure individuals (hybridization) for that characteristic.
Explain the Cost Benefit Analysis? Cost-benefit analysis: Cost benefit analysis is a useful tool to establish the priority of a particular health service action. In this, both
In a twin study of 1000 MZ pairs, 625 pairs were found to have both twins with the same form of a given trait. In a study of 1000 DZ twins, 426 pairs were found to have both twins
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