The conditions that ensure successful exchange of gases in multicellular organisms include the following except
Answer Details
The exchange of gases in multicellular organisms, such as humans, is crucial for respiration. This process occurs in the respiratory organs, such as lungs, where oxygen is absorbed and carbon dioxide is released. To ensure successful gas exchange, there must be a concentration gradient across the respiratory surface, meaning that there is a difference in the concentration of gases on either side of the respiratory surface, allowing for diffusion to occur.
The respiratory surface must also be thin to facilitate diffusion of gases across it. Additionally, there must be a large surface area of the respiratory organ to maximize the exchange of gases. The last transportation of absorbed gases, such as oxygen, to the rest of the body is also important for successful gas exchange.
However, the presence of a small, dry surface area of the respiratory organ would not ensure successful gas exchange, as it would not provide enough surface area for gas exchange, and the dry surface would not allow for efficient diffusion of gases. Therefore, this option is the one that does not ensure successful gas exchange in multicellular organisms.