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Excretory Systems of Fish and Earthworm..

For discussing the functions of different structures of all organisms.

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Postby aaaaaaaaaa17 » Wed Nov 25, 2009 4:30 pm

During the experiment, i only took a 9ml sample from the tank containing the fish and tank containing 7.3 grams of worms. So i took a 9ml sample from the fish tank of 6000ml and 9ml sample from the worm tank of 200ml

Lets say the results are exactly like you expect. What concepts would you talk about? What im looking for is some topic of discussion concerning my results, regardless of the values are perfectly right.

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Postby jwalin » Wed Nov 25, 2009 4:33 pm

that is a good parameter.

keep the quantities low. as worms will eat less
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Postby mith » Wed Nov 25, 2009 7:40 pm

the ammonia and urea come from the excretory system, assuming there's a significant difference, why would this be the case? your answer should relate to their evolutionary history.
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