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

What are some human diseases caused by virus, What are some human diseases ...

What are some human diseases caused by virus and what are their respective modes of transmission? The main viral diseases transmitted by respiratory secretions (cough, sneezes)

Ciliates, how the structure of ciliates facilitates their parasitism

how the structure of ciliates facilitates their parasitism

#title.respiratio., i want notes for respiration in humans full qand to the...

i want notes for respiration in humans full qand to the point si i can learn them

Why water is considered a universal solvent, Water is considered a universa...

Water is considered a universal solvent because- Select one: a. it can dissolve polar and non-polar compounds b. it can dissolve both positively and negatively charged ions a

What is osmotic pressure, Osmotic pressure is the pressure formed in a aque...

Osmotic pressure is the pressure formed in a aqueous solution by a region of lower solute concentration upon a region of superior solute concentration forcing the passage of water

Plant tissue, classification of plan''s tissue

classification of plan''s tissue

Heart output, HEAR T OUTPUT The amount of blood pumped by heart per...

HEAR T OUTPUT The amount of blood pumped by heart per minute. Heart beat is 72. Pump out blood is 70 ml. This 72 × 70 = 5040 ml. ( 5 litres) blood is pumped in a minute.

How the arrangement of cells helps with tissue functioning, PROVIDE a speci...

PROVIDE a specific example for epithelial and connective tissues, how the arrangement of cells helps with tissue functioning?

What is the other name given to sex chromosomes, What is the other name giv...

What is the other name given to sex chromosomes? What is the function of sex chromosomes? Sex chromosomes are also known as allosomes (the other chromosomes that are not sex ch

Define the effect of zinc deficiency, Define the effect of Zinc Deficiency?...

Define the effect of Zinc Deficiency? Zinc deficiency was identified for the first time in 1940 when malnourished Chinese patients were found to have low concentrations of zinc

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