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5. Life Processes
hard
What advantage over an aquatic organism does a terrestrial organism have with regard to obtaining oxygen for respiration ?
Option A
Option B
Option C
Option D
Solution
Terrestrial organisms take up oxygen from the atmosphere whereas aquatic animals need to utilize oxygen present in the water. Air contains more $O_2$ as compared to water. Since the content of $O_2$ in air is high, the terrestrial animals do not have to breathe faster to get more oxygen. Therefore, unlike aquatic animals, terrestrial animals do not have to show various adaptations for better gaseous exchange.
Standard 10
Science
