How does a cockroach survive after being cut off it’s head –
Cockroaches are found in almost every corner of the world. Of all the insects, cockroaches have the greatest ability to survive on their own.
But do you know that even if the head of a cockroach is cut off, it can easily live for about 7 to 10 days? So let’s try to know what is the reason due to which the cockroach survives even after the head is cut off.
Multiple nervous systems
Cockroaches have multiple nervous systems, whereas humans and other animals have only one nervous system, which is often located in their heads. When the head of an organism or a human is cut off, then its nervous system ie nervous system stops working. Due to which gradually all the parts of the body stop working and the organism dies. But on the contrary, there is more than 1 nervous system inside the cockroach which are located in different places, so even after the cut, all the organs continue to function smoothly, then multiple nervous systems is also a reason due to which the cockroach The head can survive for several days even after being cut off.
Due to the high blood pressure of the human body and other living beings, if their head is cut off, they will die in a short time due to excessive bleeding. But on the contrary, an open circulatory system is found inside the cockroach, that is, their blood does not flow through the veins, due to which the blood pressure is very low, so even after cutting the head, it does not flow much, due to which all the organs keep working.
Respiration through the skin
When the head of a cockroach is cut off, a layer forms on the outside of the wound which prevents blood from flowing. A cockroach has small pores in its body through which it breathes, so even after the head is cut off, all the organs get oxygen and they keep working.
A cockroach can live without food for about 1 month but without water, it can only survive for 7 to 10 days. Therefore, when the head of a cockroach is cut off, it cannot take water and food. And it dies after about 7 to 10 days due to lack of water.
So I hope you have understood how a cockroach can easily survive for about 1 week even after the head is cut off.