Function of Malpighian tubules.
Conduction of nerve impulse
Absorption of food
Digestion of food
Excretion
Body cavity also known as ........ in cockroach.
Give the location of hepatic caeca in a cockroach. What is their function ?
Consider the following statements regarding cockroach and mark the correct option.
$(i)$ Head is formed by the fusion of $6$ -segments.
$(ii)$ Mouth parts are biting and chewing type.
$(iii)$ Crop is the part of mid gut.
Blood of Periplaneta does not carry oxygen because
Respiratory pigment in cockroach is