Excretion!
Ewww! Are we going to be learning about poop?
If not, what will we learn about in an excretion unit?
How do simple things excrete--diffusion again?
What wastes do we make?
How do we get rid of them?
What organs are needed?
How do you keep this system running properly?
Are you ready for the test?
How do simple organisms excrete?
What are the wastes we produce?
What are the organs of excretion?
What does the liver do?
What does the kidney do?
What is found in the dermis? Why?
What are the parts of the nephron?
How do you take care of the excretory system?