I'm pretty sure it's a community.
Hope this helps :)
Here is what all 3 symbiotic relationships are: Parasitism is where one organism is benefited and the other is harmed. Commensalism one organism is benefited and the other one is not helped or harmed. Mutualism is were both organisms are benefited or both help each other. Easy ways to remember symbiotic relationships :)
Answer:
Just took this - it is: by observing cellular respiration under the absence of light.
Explanation:
Cold air will underlie warmer air at higher altitudes. :^)
Hope this helps!