Cells, Tissues, Organs, Systems

The smallest units of human life are called...

• cells

• tissues

• organs

• systems

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Tissues are made up of similar

• cells

• organs

• function

• systems

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Organs are made up of similar

• cells

• systems

• tissues

• muscles

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Your heart is one of your most important

• cells

• tissues

• organs

• systems

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The tissue that forms protective barriers called ___________ tissue.

• epithelial

• muscle

• organs

• connective

Every organ in the body has a special job or _________

• function

• cells

• tissue

• organs

The digestive and excretory _____________ process your food and waste.

• cells

• organs

• tissues

• systems

__________ is at least 1 of the 4 nutrients.

• carbohydrates

• onions

• cucumbers

• milk

____________ is the most important nutrient that our body needs.

• Protein

• Carbohydrates

• Fats

• Water

Our bodies need vitamins and minerals.

• False

• True