Which of the following is correctly matched with its role in excretion?
Choose 1
The liver releases carbon dioxide into the atmosphere.
B
The skin secretes sweat.
The urethra produces urine.
The lungs filter waste from the blood.

the skin secrets sweat

'It allows the bacterium to produce a dormant and highly resistant cell to preserve the cell's genetic material in times of extreme stress. Endospores can survive environmental assaults that would normally kill the bacterium.'

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