Yeast is used in wine and beer industries because it respires

Breathing is a process that

i) provides ${\mathrm{O}}_2$ to the body.

ii) breaks down food to release energy.

iii) helps the body to get rid of ${\mathrm{CO}}_2$.

iv) produces water in the cells.

Which of the following gives the correct combination of functions of breathing?

Mark the following statement as true or false. Correct the false statement.

Oxygen breaks down glucose outside the cells of organisms.

Mark the following statement as true or false. Correct the false statement.

Frogs can breathe through their skin as well as lungs.

Mark the following statement as true or false. Correct the false statement.

Insects have spiracles on the lower surface of the body.

Mark the following statement as true or false. Correct the false statement.

Exhaled air has more percentage of ${\mathrm{CO}}_2$ than inhaled air.