
Grade 9 - The Excretory System
Authored by Marc D'Antoni
Science
6th - 8th Grade
NGSS covered
Used 715+ times

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19 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
What role does the skin have in the excretory system?
Removing dead skin cells
Removing old hair follicles
Removing liquid waste in sweat
Protecting against infection
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
What organ is responsible for filtering the blood?
Lungs
Bladder
Kidneys
Heart
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
What is the name of stretchy, muscular organ responsible for holding urine until you decide to use the bathroom?
Kidneys
Urethra
Ureter
Bladder
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Which structure transports urine from the kidney to the bladder?
Ureter
Urethra
Bladder
Kidney
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
What is the name of the structure that leads from the bladder to the outside environment?
Ureter
Bladder
Urethra
Kidney
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
In addition to water, the principal components of urine are
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
The excretory system is responsible for moving toxic wastes, dissolved molecules, and excess heat. You would conclude that the excretory system contributes to
circulating molecules around the body
maintaining homeostasis in the body
producing glucose
gas exchange
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