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 Salt is later withdrawn from the fluid as it passes through the extensively looped duct and finally dilute urine is discharged.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 the effect of deficiency of thiamin, Explain the Effect of Deficien...

Explain the Effect of Deficiency of Thiamin? Thiamin deficiency causes the disease beriberi in human beings, which has been classically considered to exist in dry (paralytic) a

Define drawbacks for underwater weighing method, Define drawbacks for under...

Define drawbacks for underwater weighing method? Since the major drawbacks with UWW method are that the subject needs to be totally submerged underwater and exhale all of the a

Determine immunodeficiency presented by aids patients, What is the cause of...

What is the cause of the immunodeficiency presented by AIDS patients? The cause of the immunodeficiency shown by AIDS patients is the destruction of CD4 T helper lymphocytes by

Bud grafting, Bud grafting A 'T' shaped incision is made on the bark...

Bud grafting A 'T' shaped incision is made on the bark of the stock. A bark is removed on either side of vertical cut. A single bud scion with a little wood is placed

Define estimation of nitrogen and protein content, Estimation of Nitrogen a...

Estimation of Nitrogen and Protein Content Using Micro Kjeldahl's Method? Standardization of H 2 SO 4 Prepare a solution of 0.1 N H 2 SO 4  by diluting 2.8 ml of the con

Is gene a triplet of consecutive dna nucleotides, Is gene a triplet of cons...

Is gene a triplet of consecutive DNA nucleotides A gene isn't a triplet of DNA nucleotides with their respective nitrogen-containing bases, like CGT or AAG. The nucleotide trip

Intracellular sodium concentration of the motor neuron, Intracellular sodiu...

Intracellular sodium concentration of the motor neuron A complete motor neuron is removed from a frog and placed in normal physiological saline at 1 AM.  The neuron is healthy.

Procedures adopted by numerical taxonomists, Q. Procedures Adopted by Numer...

Q. Procedures Adopted by Numerical Taxonomists? Since numerical taxonomy is an operational science, the procedure is divided into a number of repeatable steps, allowing the res

Zoonoses disease-brucellosis, Brucellosis Brucellosis is a global probl...

Brucellosis Brucellosis is a global problem because of its public health and economic implications. It is one of the serious diseases affecting livestock all over the worlds th

Periapical radiography - criteria for endosteal implants, Q. Periapical rad...

Q. Periapical radiography - criteria for endosteal implants? Periapical radiographs are images of a limited region of the mandibular or maxillary alveolus.  Periapical radiogra

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