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allows us to move.

transforms the food intro nutrients and energy.

extracts oxygen from the air

supports the body and protects the organs.

how living things feed.

transports oxygen and nutrients through the body.

how living things have offspring (babies).

helps you to relate to your environment, it regulates the functions of the body through nervous impulses.

is how living things detects changes in their environment and react to them.

eliminates waste