Cockroaches breathe with the help of air tubes called ___________.
Trachea in cockroaches :
Cockroaches breathe with the help of air tubes called trachea.
Question 8 Fill in the blanks with suitable words. (a) The roots of a plant take up oxygen from the___ trapped between the ___ particles. (b) Diaphragm forms the ___ of the chest cavity. (c) Exchange of gases in the leaves take place with the help of ___. (d) Cockroaches breathe with the help of air tubes called ___.