Animals breathe in oxygen in the air.
Animals do not use up all the oxygen in the atmosphere because plants produce oxygen. When they breathe, plants inhale carbon dioxide (which is what animals breathe out) and exhale oxygen (which is what animals breathe in).
For starters, algae are plants. Plants never use oxygen. Animals use oxygen in the process of respiration. Decomposers use oxygen in the process of respiration when decomposing plants and animals including algae.
Animals don't release oxygen; we use oxygen. Plants release oxygen.
Animals use oxygen in the air to survive. Oxygen is essential for the process of respiration, which allows animals to convert nutrients into energy. Without access to oxygen, animals would not be able to survive.
If by "use" you mean "to breath," then yes.
People and animal use the oxygenAll animals require oxygen in some form.
energy
Well animals do but plants don't. Plants don't actually really use oxygen- they give it out. They use the sunlight and Carbon Dioxide in photosynthesis and the by-product (what they give out) of this is Oxygen.
Most animals, including mammals, birds, fish, insects, and some reptiles, use oxygen for respiration. Additionally, many plants also require oxygen for cellular respiration, although they primarily produce oxygen through photosynthesis. Microorganisms like bacteria and fungi can also use oxygen for growth and metabolism.
The gas that plants and animals use, which is essential for respiration, is oxygen. Oxygen is produced during the process of photosynthesis in plants, where carbon dioxide is converted into glucose and oxygen using sunlight, water, and chlorophyll. This oxygen is then released into the atmosphere and utilized by both plants and animals for their metabolic processes.
All animals and plants. Plants use oxygen as well as carbon dioxide.
Oxygen keeps animals alive, Nitrogen is not much use.