State true or false:
insects have organ,called trachea for respiration.

State true (T) or false (F).

State whether the following statements are true or false : Insects breathe through spiracles and tracheae.

Which organisms show trachea respiration?

State whether the following statements are true or false : Oxygen is released during the process of respiration.

State true or false: Englena is an organism that has both plant and animal like characters.

Assertion Insects have a complex system of air tubes called trachea for respiratory puropose . Insects do not respire through body surface.

Which group of animals have spiracles and tracheae for breathing and respiration ?

State True or False: corr( x,x )= 1