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First maxillae : There is a pair of first maxillae which are attached laterally just below the mandibles. Each lobe has 20 tubular lobules. d. Uricose gland, Question 19. The cockroach bears both exoskeleton & endoskeleton. 1. c Salivary glands : 18. H2O, sodium urates & potassium urates from the haemolymph and secrete them into its lumen. The frons is followed by an oval plate, the clypeus. A, ventral side of labrum in Embiratermes neotenicus female imago. Question 6. The body is divided into three parts—. MAXILLAE Appendages of 5th head segment. The tarsus bears 5 segments which are called as tarsomeres or podomeres. In the oothecal chamber. In cockroach, every segment of thoracic and abdominal regions has series of paired triangular muscles known as alary muscles. What type of mouth parts does a butterfly have? Inner to each eye lies a shallow depression on the frons called atennal socket. Gizzard : It is also called as proventncuius. b. The cockroach has biting & chewing mouth parts which are also called as mandibulated mouth parts. The mucous makes the food slimy & soil. As a result of copulation. They are used to steady and manipulate the food. They are silvery white & their walls are supported by spiral rings made up of trachin protein, the inner ends of the trachioles are closed & are full of trachiole fluid. The trachea is also called as wind pipe & it originates from ectoderm. It includes nerve ring and the nerve cord. 18. c a. Coelom Mandibles : There is a pair of mandibles which arc attached laterally below the labrum. Vas deferens : Each testis leads into a vas deferens. Question 7. The peritrophic membrane protects the soft mid-gut from the hard food particles. It is a … Cockroach searches for its food by olfactory and tactile antennae, tasted by maxillary and labial palps and finally solid food is captured by legs and maxillae. How they function? The wings have a network of veins containing haemolymph at the time of formation. It’s distal end is elevated and the inner surface is attached with gustatory hair. (e) The wings are comparatively short and remain up to the abdomen. Rectum : It is the last part which opens outside through the anus It is small, broad & provided withe 6 longitudinal rectal papillae. Smaller surface Large surface. Hie wings are formed as evagination of the body wall between the tergum & pleuron. d. Lvmphocoel, Question 9. Respiration in cockroach is performed by the contraction & the relaxation of the tergosternal muscles. Mushroom or Utricular gland : The stomodael valve secretes a peritrophic membrane around the semi-digested fine food particles. Answer : The trachioles are the tubules of 1 micron diameter. Question 1. Question 2. The exchange of gases takes place by diffusion between the trachiole fluid & tissue fluid. Its labrum is a broad flap that serves as a front lip. c. Amino acid It’s duration is of one hour. It is formed in the male reproductive organs. Now the sperms are released on the ova from the spermathecae. d. Imago, Answers : Mushroom or Utricular gland : It is found in 7th abdominal segment & opens into an ejaculatory duct. Only in female cockroach c. Haemocoel The sclerites of prothorax, mesothorax and metathorax are respectively called as pronotum, mesonotun & metanotum. It includes ileum, colon, rectum & anus. d. All the above, Question 16. Answer : Hie wings are formed as evagination of the body wall between the tergum & pleuron. The peritrophic membrane is made up of protein & chitin. The blood in cockroach is called is They are called as tegmina or elytra or coverites. Exoskeleton of the head is called as head capsule which is formed by the fusion of six sclerites. Each salivary gland is bipartite i.e. The labrum bears … (C) Abdomen – The compound eyes are black, kidney-shaped and sessile. This cornea! (iv) Formation of Ootheca They pick up and bring food. They are unsegmented and help in copulation. Hypo pharynx is a tongue like structure in the floor of the mouth. the blood dries up & tire network of veins act as an endoskeleton. During copulation, the male opens the female gonopore with the help of phallomeres and insert one spermatophore into the genital chamber. The duration between to heart beats is called as diastasis.

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