Basic physiological processes
Select one of the basic physiological processes from the following list:
Acquire & process nutrients
Get rid of waste
Reproduction
Obtain information about & respond to external environment
Movement
Post a 200 to 300 word response explaining how that physiological process DIFFERS among ALL the following organisms:
Bacteria
Grasshopper
Fish
Bear
Excretion is the elimination of waste metabolic substances which, if permitted to accumulate, would prevent the maintenance of a balanced state. Major excretory products are ammonia (ammonotelic), urea (ureotelic ) and uric acids (urecotelic). Most aquatic animals including many fishes are ammonotelic. Mammals, Amphibians, Sharks, and some bony fishes are ureotelic. However, Birds, Insects, snails, reptiles are urecotelic.
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- excretory system.doc
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