Respuesta :
The flatworm is made up of a model system, such as protonephridia, which aids in ISF filtering (interstitial fluid). Earthworm metabolic waste enters the interstitial fluid and consists of metanephridium involved in excretion.
What are the excretory systems of flatworms, earthworms, and insects?
The flatworm is made up of a model system, such as protonephridia, which aids in ISF filtering (interstitial fluid). Earthworm metabolic waste enters the interstitial fluid and consists of metanephridium involved in excretion.
The metabolic waste products enter the insect system via the hemolymph (extracellular fluid of insects).
Ciliated cells in flatworms draw interstitial waste products into protonephridia. Waste products from interstitial fluids enter the coelom of earthworms. Cilia then transport wastes into metanephridia via a funnel that surrounds an internal opening to the metanephridia.
The Malpighian tubules in insects pump fluids from the hemolymph, which receives waste products during an exchange with cells during circulation.
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