A. Competition amoumg large predatora
The correct answer is glycolysis.
Glycolysis is an anaerobic process of splitting a molecule of glucose (6 carbons) to 2 molecules of pyruvate (3 carbons each). Glycolysis does not require the presence of oxygen and will still produce energy, albeit lower than aerobic metabolism. In the absence of oxygen, fermentation can occur wherein pyruvate is further converted into lactate.
The adaptations that a coconut crabs also known as a robber crab is they use a special organ called branchiostegal lung that they use to breathe which other crabs have. This organ is a developmental stage between gills and lungs and is one of the most significant adaptations of the a coconut crab.
I believe it is Carbon Dioxide. When we take in Oxygen, we breathe out Carbon Dioxide.
