Excretory organs in different animals, Biology

Assignment Help:

EXCRETORY ORGANS

  1. In protozoa through plasmalemma by diffusion. Contractile vacuole present for osmoregulation (absent in parasitic and marine protozoa).
  2. In porifera and coelenterata excretion takes place through body wall.
  3. In platyhelmenthes flame cells or protonephridia or solenocytes present.
  4. In aschelminthes coelomoducts present. In annelida nephredia are present.
  5. In arthropoda malpighian tubules, green glands or antennary glands, coxal gland present.
  6. In mollusca, coxal gland, renal gland, organ of bazonus, kebber's gland, metanepredia are present.
  7. In echinoderm by water vescular system, or ambulacral system.
  8. In protochordata by single glomerulus or proboscis gland.
  9. In urochordata by supra renel gland or pyloric gland or nephrocyte.
  10. In cephalo chordata by brown funnel or solenocyte or flame cells or Hetschek's nephridia.
  11. In bdellostoma, myxine, fishes by pronephric kidney. In amphibia by mesonephric kidney.
  12. In reptile to mammalia by metanephric kidney.

Related Discussions:- Excretory organs in different animals

Why is it not correct to assert that dna self-replicates, Why is it not cor...

Why is it not correct to assert that DNA self-replicates? DNA is not completely autonomous in its duplication process because the replication does not happen without enzymatic

Role of diet - diabetes mellitus, To be in good health, we need to take foo...

To be in good health, we need to take food. Energy is provided by food to carry out activities in day to day life. In the same way, a diabetic patient also needs healthy food for e

Advantages of the dsme, Following are the advantages of the DSME: It enable...

Following are the advantages of the DSME: It enables the patient to 1. Accept the disease. 2. Gain knowledge about disease, its prevention, treatment and management. 3.

Management of constipation, Q. Management of Constipation? You must hav...

Q. Management of Constipation? You must have realized by now that proper dietary and lifestyle management can help in maintaining the normal bowel movements to a great extent.

Safety, S a f e ty, ethical and welfare considerations Development ...

S a f e ty, ethical and welfare considerations Development of transgenic organisms is proceeding in an environment of intense public debate about safety, environmental impa

Explain food effects on drug excretion, Explain Food Effects on Drug Excret...

Explain Food Effects on Drug Excretion? Food and nutrients can alter the re-absorption of drugs from the renal tubes. Urinary acidity affects drug re-absorption from the renal

Briefly explain the difference of stabilizing selection, Briefly explain th...

Briefly explain the difference between stabilizing selection, directional selection, and disruptive selection.

What are the archenteron and the blastopore, What are the archenteron and t...

What are the archenteron and the blastopore? What is the stage of the embryonic development in which these structures are formed? What are the destinations of the archenteron and o

Reverse osmosis, Ordinary osmosis cannot be used to purify water. If the ap...

Ordinary osmosis cannot be used to purify water. If the applied pressure exceeds osmotic pressure then water starts moving from solution side to pure solvent side. This is reverse

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