Explain the external features of cockroach with the help of diagram
EXTERNAL FEATURES OF COCKROACH
If you are looking at the external body of the cockroach, you will find legs, wings, abdomen, head, antennae, the pronotum, mesothorax, metathorax, and anal cercus as represented in the diagram.
If you are looking at the external body of the cockroach, you will find legs, wings, abdomen, head, antennae, the pronotum, mesothorax, metathorax, and anal cercus as represented in the diagram.
All arthropods possess
- Exoskeleton - a hard protective covering around the outside of the body (divided by sutures into plates called sclerites)
- Segmented body - that allows movement
- Jointed limbs and jointed mouthparts - that allow extensive specialisation
- Bilateral symmetry - whereby a central line can divide the body into two identical halves, left and right
- Ventral nerve chord - as opposed to a vertebrate nerve chord which is dorsal
- Dorsal blood vessel.