Answer:
the cell membrane is a single layered membrane, while the cell wall is a double layered membrane.
Explanation:
The urine produced by the kidneys travels down the ureters to the bladder. Muscles which line the ureter walls tighten and relax to push the liquid down.. A small amount of urine is released by the kidneys every 10 to 15 seconds.
Answer:
Breathing is essential for all living beings. It is basically a process where the external air is inhaled into the lungs. The lungs use up the oxygen from the air and send out carbon dioxide into the external environment. This is also called exhaling.
The exchange of air between the external and internal environment of a living being is known as breathing. The constant intake and utilization of oxygen by the body is what keeps the organs working, and the living being alive.
