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Excretory System
Porifera
Excretion is regulated bydiffusion
ChordataTwo Major Organs
Kidney Liver
KidneysAll Classes!
(Fishes, Amphibians, Reptiles, Aves, Mammals)
KidneysFunctions:-excrete waste products -regulate water and salt balance
Kidneys do this by filtering blood and producing urine.
Excretion
KidneysKidney’s filter your blood continuously.
They filter your entire blood supply (5 liters) approximately
400 times a day!
Functions:-detoxify the blood
The liver does this with enzymes that chemically alter many substances, such as alcohol, before the blood reaches other body parts.
Liver1 Class(Mammals)
Other Invertebrates
All excretory system lack Kidneysand a liver
Homeostasis?
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