The exoskeleton of a cockroach is made up of chitin. The skeleton of cockroach is covered by thick hard chitinous cuticles secreted by the epidermis. … So, the correct answer is “chitin”. – The presence of chitin in exoskeleton supports and protects the cuticles of the epidermis and trachea as well as.
Which animal has a chitinous exoskeleton?
Chemically, it is a nitrogenous polysaccharide (a carbohydrate). Subsequently, – A case of a chitinous exoskeleton is Honeybee. All arthropods (such as insects, spiders, and crustaceans) and many other invertebrate animals like shelled mollusks have exoskeletons.
Which of the following in cockroach is non chitinous?
Chitin absent in labrum mouth part of cockroach.
How do you spell chitinous?
n. A tough, protective, semitransparent polysaccharide forming the principal component of arthropod exoskeletons and the cell walls of certain fungi.
Why are exoskeletons so successful?
It is believed that insects are so successful because they have a protective shell or exoskeleton, they are small, and they can fly. Their small size and ability to fly permits escape from enemies and dispersal to new environments. … In addition, insects can produce large numbers of offspring relatively quickly.
What is the function of gizzard in cockroach?
Hindgut: Its main function is the absorption of water and minerals. So, the correct answer is, ‘the function of gizzard seen in grasshopper and cockroach digestive systems is grinding of food materials‘. Note: The main function of the gizzard is grinding the food and not storage.
What is the role of hypopharynx in cockroach?
The maxillae in cockroaches are paired and serve the primary function of tasting food. The hypopharynx is closely associated with salivary glands and functions as the tongue that helps in the movement of food in the preoral cavity.
Which type of mouth parts are present in cockroach?
The mouth parts of cockroach are of biting and chewing type consisting of labrum (upper lip), a pair of mandibles, a pair of maxillae and a labium (lower lip). Within the oral cavity enclosed by the mouthparts, lies a median flexible lobe called hypopharynx (tongue).
Can a cockroach live in a human body?
German cockroaches are one of the most common bugs that end up in human orifices. … The nasal cavity and sinuses are larger than you might think, extending between the eyes and into the cheekbones, and since these are air-filled spaces, an insect can survive in there for a while.
Which skeleton is most appropriate to the cockroach?
Answer Exoskeleton is common to arthropod like cockroach (B).