Question.
What advantage over an aquatic organism does a terrestrial organism have with regard to obtaining oxygen for respiration?
What advantage over an aquatic organism does a terrestrial organism have with regard to obtaining oxygen for respiration?
solution:
Air contains about $21 \%$ of oxygen while water has less than $1 \%$ oxygen in dissolved state. A terrestrial organism is able to get several times more oxygen than an aquatic organism.
Air contains about $21 \%$ of oxygen while water has less than $1 \%$ oxygen in dissolved state. A terrestrial organism is able to get several times more oxygen than an aquatic organism.