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!
Excretion in Non-Chordates
Excretion as described under Introduction of this unit refers to removal of the waste products of metabolism - carbon dioxide (CO2) and water released by the oxidation of energy rich compounds and the nitrogenous wastes released through the metabolism of proteins and nucleic acids. Though, we will here limit ourselves to elimination of nitrogenous waste. In small ones, particularly aquatic ones, simple diffusion from body surface plays a significant role in elimination of nitrogenous wastes. Even in larger aquatic animals some diffusion occurs from body surface, but they have evolved specialised organs for excretion, which play the main role in elimination of nitrogenous waste material. However, it has to be remembered, that many of these organs serve basically osmoregulatory function rather than excretory. Well described excretory organs are seen from the pseudocoelomate animals onwards. Several groups of metazoans have nephridia as excretory organs. A nephridium develops from the ectoderm centripetally. The lumen of the nephridium is formed by using the hollowing out of nephridial cells. Thus nephridia are intracellular. In primitive animals this lumen is closed internally but subsequently attains an opening into the coelom. The opening is termed as nephridial funnel or nephrostome. Its opening to the outside is by nephridiopore.
Q. Is the neural impulse generated by the stimulus that triggers the arch reflex restricted within the neurons of this circuit? This is obvious since the person that received t
What is the etiological agent of cutaneous leishmaniasis? How is the disease transmitted and what are its typical manifestations? The etiological agent of cutaneous leishmanias
classification
What happens if platelets aren''t present in blood?
Explain about the IMViC Test? IMViC test is a combination of four tests: (1) Indole production (2) Methyl Red test (3) Voges Proskauer, and (4) Citrate Utilization
Q. What are the classes of lipoproteins in the blood? Blood lipids (cholesterol, triglycerides and phospholipids) being insoluble in blood need a ship to travel in our body; it
What are the main endocrine glands of the human body? The major endocrine glands of the human body are the pineal gland (or pineal body), the hypophysis (or pituitary), the thy
What is Atrial Septal Defect ? Figure: Anatomical location of Am Indication for Surgery : The presence of an ASD or PAPVC (Partial Anomalous Pulmonary Venous Conn
what is excretory product of lion
Q. How does the universality of the genetic code make the recombinant DNA technology possible? The universality of the genetic code refers to the fact that all living beings ha
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