Answer:
living things respire to get oxygen for living cells to function. Without air, there is no life. Plants use Carbon Dioxide (together with sunlight and water) to produce energy and give out Oxygen as a by-product. This oxygen is what almost all animals need to survive.
Explanation:
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A cell uses the cytoskeleton to guide or group organelles
The cerebrum is the region of your brain where thought, vision, hearing, touch, and motion are processes. It's the largest part of the brain and contains the right and left hemispheres. The answer is cerebrum.