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human biology - part 1

Across
Keeps us warm
Tiny living material
Carries in food & oxygen, carries out waste
How a swallowed aspirin gets to the bloodstream
Tissues that work together
Example of mechanical digestion
Down
Where does digestion begin?
Group of cells with a special function
Holds us together
Helps digestion of fat
Example of chemical digestion
Supports and protects the body
Heart muscle
Partly digests food using enzymes