Respiration of Ascaris within its host is
A. cutaneous
B. aerobic
C. anaerobic
D. both b and c
D. both b and c
The respiration of Ascaris within its host is both b and c, which means it can occur through both aerobic and anaerobic processes.
The correct answer is A. cutaneous respiration.
To determine the type of respiration of Ascaris within its host, we need to understand what cutaneous, aerobic, and anaerobic respiration mean.
Cutaneous respiration refers to the exchange of respiratory gases (oxygen and carbon dioxide) across the skin. Some organisms, like Ascaris, have specialized adaptations that allow them to obtain oxygen through their body surface, primarily the skin. Therefore, cutaneous respiration is the most appropriate type of respiration for Ascaris within its host.
Aerobic respiration occurs in the presence of oxygen and involves the breakdown of glucose to yield energy. This type of respiration requires the respiratory system to transport oxygen to the cells for energy production. However, Ascaris lacks a specialized respiratory system, making aerobic respiration unlikely within its host.
Anaerobic respiration occurs in the absence of oxygen and is typically associated with certain bacteria and other organisms living in oxygen-depleted environments. Ascaris does not rely on anaerobic respiration for survival within its host.
Based on this information, we can conclude that the correct answer is A. cutaneous respiration.