The steeper the slope of the track the quicker the toy car will accelerate.
It is true that your respiratory system is the system in your body that is responsible for your breathing.
Renal medulla
The renal medulla contains the renal pyramids, where urine formation takes place. Urine passes from the renal pyramids into the renal pelvis. This funnel-shaped structure occupies the central cavity of each kidney and then narrows as it extends out to join the ureter.
Answer:
B
Explanation:
We breath in oxygen, and we breath out carbon dioxide. Plants breath from the sun.
