[ Mixed General Quiz ]
Which of the following systems is responsible for retaining constant blow flow throughout the body?
A. Respiratory
B. Endocrine
C. Nervous
D. Cardiovascular
E. Digestive
Select your answer:
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A piece of cloth that keeps the front of your clothes clean or dry when you are working in the kitchen.
A. dishes
B. clothes
C. apron
D. scarf
How to use : Read the question carefully, then select one of the answers button.