Why is predation not a symbiotic relationship?

Explanation:

It may seem like predation is not an example of symbiosis because only one organism survives the encounter. However, without predation, other species would become too numerous and resources would become sources.

stratosphere: as the altitude increases, the air temperature increases. the stratosphere has a layer of ozone, called the ozone layer. this layer absorbs most of the ultraviolet radiation from sunlight. this results in the stratosphere being warmer.

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