Observe the pictures of cockroach and housefly. The common features that assign tham the same phylum

Observe the pictures of the following organisms. The common feature that assigns them to same phylum is :

Refer following figures to answer the forthcoming practical questions Observe the pictures of a bird and a bony fish, the feature that places them in the same phylum is :

Observe the pictures of fish and a bird. The feature that places them in the same phylum is :

Refer following figures to answer the forthcoming practical questions Which of the following organisms A,B,C and D have common features that place them in the same phylum ?

Common characteristics of cockroach , housefly and mosquito are

One common feature of the trachea of cockroach and the trachea of mammals is that

One common feature of the trachea of cockroach and the trachea of mammals is that