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

Pregnancy - fungal infections, Pregnancy - Fungal Infections Amphoteric...

Pregnancy - Fungal Infections Amphotericin B is the preferred treatment for deep fungal infections during pregnancy. Fluconazole is teratogenic in animals and a same pattern of

Homeostasis , The state of balance in the internal environment of the body ...

The state of balance in the internal environment of the body it includes control of the water balance of the blood, body temperature, blood sugar level and blood urea level. Each o

Define keratomalacia - micronutrient deficiencies, Define Keratomalacia - M...

Define Keratomalacia - Micronutrient Deficiencies? This is a condition of rapid destruction and liquefaction of full thickness of cornea, leading lo prolapse of iris, resulting

What are the consequences of failures during dna replication, One character...

One characteristic of the DNA molecule is its replication capability. What are the consequences of failures during DNA replication? Ideally a DNA molecule should replicate in a

Photosynthesis., C4 plants have higher net photosynthetic rate because ...

C4 plants have higher net photosynthetic rate because a.they have no photorespiration b.can photosynthesise in low in

Fdas post marketing surveillance system works, Problem 1: How does the ...

Problem 1: How does the FDA's post marketing surveillance system works? Show FDA's post marketing surveillance system Explain about Adverse Event reporting system and

What are the major human diseases caused by roundworms, Q. What are the maj...

Q. What are the major human diseases caused by roundworms? The major human diseases caused by nematodes are ancylostomiasis, ascariasis (hookworm infection) and filariasis (com

Define briefly about the manganese toxicity, Define Briefly about the Manga...

Define Briefly about the Manganese Toxicity? Manganese is considered least toxic of the trace minerals through oral intake. However, some people may be at a risk to develop tox

Define energy requirements of infants, Define Energy requirements of infant...

Define Energy requirements of infants? Energy: Energy requirements of infants are based on the energy intake through breast milk by infants of well-nourished mothers. Based on

Define beaker - nutritional biochemistry, Define Beaker - Nutritional Bioch...

Define Beaker - Nutritional Biochemistry? It is used for storing a liquid to be used in a reaction and for dissolving a substance in a solvent to make its solution. A beaker sh

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