Question

Define structure of a cockroach?

Answer 1

• Cockroaches have a long pair of antennae that help them to pick up smells and vibrations.The antennae are connected to the head, which also includes the brain, strong mouthparts for scraping and chewing food and compound eyes. They have poor vision and dislike light.
• After the head comes the thorax. It includes three pairs of legs – cockroaches have six legs total – and two pairs of wings. There is a plate behind the head called the pronotum. Adult cockroaches have wings.
  
• The abdomen consists of reproductive organs. At the back of the abdomen are two short protrusions called cerci. They function like rear antennae and are connected to the roach's legs by the abdominal nerve ganglia. This allows their legs to start moving when vibrations are sensed, often before their brain even processes a threat.