Metanephridia - excretion, Biology

Assignment Help:

Metanephridia - Excretion

Metanephridia are found in coelomates (e.g., annelids). These animals have evolved a close circulatory system intimately associated with the excretory organs resulting in direct exchange of material between the two systems. In these worms an isosmotic fluid appears initially in the nephridium due to filtration of the coelomic fluid through the ciliary mesh of the nephrostpme. Salt is later withdrawn from the fluid as it passes through the extensively looped duct and finally dilute urine is discharged.


Related Discussions:- Metanephridia - excretion

Explain in detail about male reproductive system, Explain in detail about M...

Explain in detail about Male Reproductive System The male reproductive organ consists of the following:  A pair of testes, held in scortum; produces spermatooa and testoster

Heliozoans - protozoan, Heliozoans - Protozoan Heliozoans are spherica...

Heliozoans - Protozoan Heliozoans are spherical protozoan that occur in the sea or in still bodies of fresh water. They are mainly located in the bottom debris. Fine needle li

Metabolic aberrations and symptoms, Q. Metabolic Aberrations and Symptoms? ...

Q. Metabolic Aberrations and Symptoms? We all know that insulin exerts an important role in the maintenance of normal blood glucose levels through its effect on the metabolism

Total darkness and pea seedlings grown in the light, What differences would...

What differences would you expect to see among pea seedlings grown for 10 days in total darkness and pea seedlings grown in the light for the similar period of time?   The s

What is genetic equilibrium, What is genetic equilibrium? The Genetic e...

What is genetic equilibrium? The Genetic equilibrium is the result of the Hardy-Weinberg law, a principle that affirms that under specific conditions the frequencies of the all

Draw a diagram of the longitudinal section, Draw a diagram of the longitudi...

Draw a diagram of the longitudinal section of a mature anatropous ovule and label any ten parts in it.

What is the role of stomach in human body, What is the role of Stomach in h...

What is the role of Stomach in human body? The stomach serves both to digest food and to hold it so that it can be gradually released into the small intestine. Food stays in th

Define requirements of calcium during pregnancy period, Define requirements...

Define requirements of Calcium during pregnancy period? The foetus retains about 25-30 g of calcium, over the course of gestation, most of which is deposited in the last trimes

Signs and symptoms of hypothyroidism, Q. What are some signs and symptoms f...

Q. What are some signs and symptoms found in patients with hypothyroidism? In hypothyroidism the production and secretion of T3 and T4 are impaired. Since these thyroid hormone

Can you explain the process of branchiae, Q. What are branchiae? What are e...

Q. What are branchiae? What are examples of animals that "breath" through branchiae? Branchiae also known as gills are small portions of richly vascularized tissues external or

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd