What is the importance of oxygen​

Without oxygen humans wouldn't be able to survive ,with out oxygen is like The moon with no oxygen mask , oxygen is what humans need to survive .

Explanation:Oxygen plays a critical role in respiration, the energy-producing chemistry that drives the metabolisms of most living things. We humans, along with many other creatures, need oxygen in the air we breathe to stay alive. Oxygen is generated during photosynthesis by plants and many types of microbes.

Hello True Beauty fan!

Most living things need oxygen to survive. Oxygen helps organisms grow, reproduce, and turn food into energy. . Oxygen gives our cells the ability to break down food in order to get the energy we need to survive.

Oxygen is essential to have efficient cellular respiration; most organisms need oxygen for a single purpose: to release energy from food for use by cells.

complete the square on the right side of the equation;

-5(x + 0)^2 + 15

answer: d. y = -x^2 + 15

since there are no options posted i'll give you a few examples.

a dolphin's flipper, bird's wing, cat's leg.