The terga, sterna and pleura of cockroach body are joined by
arthrodial membrane
cartilage
cementing glue
muscular tissue.
The figure given below shows the alimentary canal of cockroach with few structures labelled as $1,2,3$ and $4 .$ Identify the correct identification of the structure which is also called proventriculus and helps in grinding the food particles.
Which is correct for mosaic vision ?
Which one of the following has an open circulatory system?
Describe respiratory system of cockroach.
Which accessory digestive gland found in cockroach?