What is the excretory system of earthworm?

What is the excretory system of earthworm?

Nephridia are the primary excretory organs of earthworm that carry out the duties of excretion and osmoregulation. Exonephric nephridia or ectonephric nephridia are the types of nephridia that directly remove the nitrogenous wastes outside the body of earthworm by nephridiopores( external opening of nephridia).

How is waste excreted in insects?

Malpighian tubules of insects and other terrestrial arthropods remove nitrogenous wastes and other solutes from the hemolymph. Na+ and/or K+ ions are actively transported into the lumen of the tubules. Water then enters the tubules via osmosis, forming urine. The concentrated waste is then excreted.

How do flatworms remove waste from their body?

Flatworms have an excretory system with a network of tubules throughout the body that open to the environment and nearby flame cells, whose cilia beat to direct waste fluids concentrated in the tubules out of the body. The system is responsible for regulation of dissolved salts and excretion of nitrogenous wastes.

How do flatworms reproduce?

Flatworms are hermaphroditic (having both male and female sex organs) and they typically reproduce both sexually and asexually. The majority of sexual reproduction is through cross-fertilization (where both individuals fertilize each other).

Where do flatworms lay eggs?

Most flatworms reproduce sexually, and almost all species are hermaphroditic. Although gamete exchange is most common, self-fertilization is possible in some species. Eggs are laid singly on a hard substrate, are grouped into clusters (sometimes stalked), or are placed in cocoons.

How do flatworms benefit humans?

Flatworms provide new insight into organ regeneration and the evolution of mammalian kidneys. Summary: Our bodies are perfectly capable of renewing billions of cells every day but fail miserably when it comes to replacing damaged organs such as kidneys.

How do you use flatworm exit?


  1. 1 drop for every 4 liters or 1 gallon.
  2. Add it in a high flow area of the tank.
  3. It should start to work within 30 minutes.
  4. If within 45 minutes no visible death of flatworms occurs add 50% more.
  5. As soon as the flatworms start to die, commence with the activated carbon to take out any toxic body juices.

How do I get rid of flatworms in my garden?

If you are given plants by a gardener from an area where flatworms have been found, remove all of the soil and dispose of it in a sealed plastic bag. Alternatively, immerse the pot and rootball in warm water (over 30C/86F) for 40 minutes. This will kill any flatworms or eggs present.

Do flatworms live in soil?

Land flatworms, a group of about 910 species, typically live in tropical jungles or temperate wooded areas and can survive only in moist soil environments. Ancestors of terrestrial flatworms colonized the land, from the sea or freshwater, hundreds of millions of years ago.

Where are earthworms found?

Earthworms and their relatives live anywhere there is moist soil and dead plant material. Earthworms are most abundant in rainy forest areas, but can be found in many habitats on land and in freshwater. All earthworm species need moist soil conditions to survive.

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