What term describes a relationship between two organisms where one benefits and the other is unaffected? parasitism mutualism commensalism predation

Which would best keep the oxygen cycle stable? a. cutting down jungles to create farmland b. eliminating parks in large cities c. dumping toxic chemicals into the ocean d. reducing the amount of deforestation d. reducing the amount of deforestation

Several billion years ago which gas was the least prevailant in the atmosphere

How does food concentration affect yeast activity