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Body systems-Respiratory & Excretory

Across
System of an organism's body that performs the function of elimination of wastes.
Organs that remove waste from the blood and transfer them into urine.
Small sacs inside the lungs where oxygen and carbon dioxide are exchanged and moved into the blood.
Muscular sacs inside the chest that bring oxygen into the body and release carbon dioxide
The body system that takes in oxygen and releases carbon dioxide. This system includes the nose, mouth, lungs, and the parts that connect them.
Down
The number of breaths per minute
Organ that holds urine before it is released from the body.
A chemical that indicates the presence, absence, or concentration of a particular substance.
A gas (carbon dioxide), a liquid (urine and sweat), or a solid removed from the body.
Tube that connects the throat and nose to the smaller tubes that lead into the lungs.