The nostrils in the human body are analogous to the spiracles in the cockroach.


The nostrils in humans help in exchange of gases in the respiration process which is basis to human existence similarly in the insects the spiracles help in the exchange of gases.

The fat bodies in a cockroach are specialized tissues that are present throughout the body. These tissues are made up of cells that are filled with lipid droplets and are responsible for storing energy. The fat bodies in a cockroach are located in different parts of the body, including the abdomen, thorax, and head.


The fat bodies of cockroach can be compared to the following organs in the human body:


The liver is an organ in the human body that is responsible for storing and regulating energy. The liver is also responsible for detoxifying the blood and producing bile. Similarly, the fat bodies in a cockroach are responsible for storing energy and regulating metabolism.


Adipose tissue is a specialized tissue in the human body that is responsible for storing energy in the form of fat. The fat cells in adipose tissue are similar to the cells found in the fat bodies of cockroach. Both adipose tissue and fat bodies are responsible for storing energy and regulating metabolism.


The pancreas is an organ in the human body that is responsible for producing insulin and regulating blood sugar levels. The fat bodies in a cockroach are also responsible for regulating sugar levels in the hemolymph, which is the equivalent of blood in cockroaches.


In conclusion, the fat bodies in a cockroach are analogous to several organs in the human body, including the liver, adipose tissue, and pancreas. These specialized tissues are responsible for storing energy and regulating metabolism, making them essential for the survival of both cockroaches and humans.