Body Systems: National Geographic

How many cells do we have in our bodies?

• Hundreds

• Millions

• Billions

• Trillions

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The alveoli pull what into our lungs?

A newborn's heart is no bigger than which of the following?

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The brain, lungs, and heart are all examples of what?

• Cells

• Body Systems

• Tissues

• Organs

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Which of the body systems below do you think includes the 5 senses?

• Nervous system (send signals between the body and the brain)

• Circulatory system (moves blood around the body)

• Digestive system (takes in nutrients from food)

• Skeletal system (provides structure and support to the body)

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Describe a baby's vision in the first month of life.

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How long does it take for a baby to have 20/20 (perfect) vision?

How many sensory receptors are there on just the tongue of a newborn?

• 9

• 900

• 9,000

• 90,000

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Take a guess: What body system do you think the teeth are apart of?

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How many hours does it generally take our body to fully digest a meal?