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it is where the the nutrients runs out of the mouth or the anus of the organism therefor they take the nutrients that other organisms leave behind and they get the nutrients from that that is the excretion of cnidaria
The earthworm gets nutrients the same way most other animals get nutrients, by eating and digesting them. The earthworm digests dirt and bacteria and enzymes in the dirt in order to utilize the vitamins and minerals it needs to survive.
Excretion
Excretion
To process food and extract nutrients.
Water is the substance that makes up the majority of the transport system in humans. Important chemical activities (metabolism) are reliant on water. Digestion of food, absorption of nutrients, detoxification activities(excretion), and many of the other important metabolic activities would not take place without water.
The excretion process in Cnidarians is accomplished through diffusion. The waste flows out of the gastrovascular cavity after the nutrients go directly to the body.
The difference between excretion and defecation is excretion is the removal of waste and defecation is the removal of undigested waste. During defecation, the nutrients are absorbed by the body before being removed from the body.
the crop gives the worm nutrients (food)
increase intestine surface area for more efficent absorption of digested nutrients
Water, nutrition, shelter, excretion and movement. nutrients, water, atmospheric pressure, and oxygen
In earthworm, typhlosole is a dorsal flap of the intestine that runs along most of its length. Its function is to increase intestine surface area for more efficient absorption of digested nutrients. In different earthworm families, the typhlosole appears to have multiple origins