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15 questions
Which of the following objects is a conductor of electricity?
Wooden Toothpick
Penny
Plastic Spoon
What substance or chemical is in your mouth to help soften food and begin carbohydrate digestion?
Saliva
Water
Blood
Which was once a planet, but is now renamed a dwarf planet?
Earth
Pluto
Moon
Which long bone do you see in the figure?
humerus
femur
collarbone
rib
Which organ does pump blood in all the body?
liver
brain
heart
stomach
Which human system do you see in the image?
digestive system
respiratory system
circulatory system
nervous system
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