This system gets oxygen to the cells of the body and rids the body of waste gases. some organisms use their skin. this is also a cell-level process.

Respiratory system

Explanation:

The main function of the respiratory system is to allow the oxygen from atmosphere to enter the blood accompanied by release of carbon dioxide from blood into the air. It includes inhalation and exhalation.

Some organisms such as humans have complex respiratory systems and lungs are the main organs. Other organisms such as earthworms have moist skin with rich supply of blood vessels to serve the function of site of gaseous exchange.

there are 35 white marbles

step-by-step explanation:

y- yellow marbles

4y + 5 = 45

subtract 5 from both sides

4y = 40

divide for from both sides

y = 10

plug in 10 to get 40 yellow marbles then subtract by 5 to get 35 marbles

thus there are only 10 yellow marbles