Biology

6th -

8thgrade

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Excretory System

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20 questions

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  • 1. Multiple Choice
    45 seconds
    1 pt
    Which organ of the excretory system stores urine until the body is ready to eliminate it?
    ureters
    urethra
    urinary bladder
    urea
  • 2. Multiple Choice
    30 seconds
    1 pt
    Tiny filtering structures where urine is produced in the kidneys are called
    ureters.
    alveoli.
    nephrons.
    bronchi.
  • 3. Multiple Choice
    30 seconds
    1 pt
    Under normal conditions, which of the following substances is found in urine?
    blood cells
    protein
    glucose
    urea
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