[{"id":1066959,"question":"In urochordates the notochord is present","choices":[{"text":"In adult stage","value":"A"},{"text":"Only in larval stage","value":"B"},{"text":"Throughout life","value":"C"},{"text":"Lack in all stages","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066958,"question":"The tubular nere cord in chordates is present.","choices":[{"text":"Lateral walls of pharynx","value":"A"},{"text":"Dorsal to notochord","value":"B"},{"text":"Near the throat","value":"C"},{"text":"Ventral to reproductive system","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066957,"question":"Which of the followign is a common derived characteristic of all chordates at some stage of their life cycle.","choices":[{"text":"Post anal tail","value":"A"},{"text":"Amniotic egg","value":"B"},{"text":"Vertebral column","value":"C"},{"text":"Radial symmetry","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":1066956,"question":"The unique and distinguishing characteristics of arthropods is.","choices":[{"text":"Closed type of circulartoy system ","value":"A"},{"text":"Flame cells","value":"B"},{"text":"Joined appendages","value":"C"},{"text":"Radical symmetry","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":1066955,"question":"The exoskeleton of arthropods is primarily composed by ","choices":[{"text":"Silica","value":"A"},{"text":"Calcium carbonate","value":"B"},{"text":"Celluose","value":"C"},{"text":"Chitin","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":1066954,"question":"The process of shedding old exoskeleton and formaing new exoskeleton of large size in arthropods is termed as.","choices":[{"text":"Metamorphosis","value":"A"},{"text":"Ecodysis","value":"B"},{"text":"Regenerration ","value":"C"},{"text":"Reproduction ","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066953,"question":"The exretory structures in arthropods is","choices":[{"text":"Crop","value":"A"},{"text":"Gizzard","value":"B"},{"text":"Malpighian tubules","value":"C"},{"text":"Mesenteron","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":1066952,"question":"Which  one of the following arthropod respires through tracheal tubes.","choices":[{"text":"Prawn","value":"A"},{"text":"Crab","value":"B"},{"text":"Spider","value":"C"},{"text":"Lobster","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":1066951,"question":"The water vasular system in echinoderms is basically used for.","choices":[{"text":"Excretion ","value":"A"},{"text":"Locomotion ","value":"B"},{"text":"Respiration ","value":"C"},{"text":"Reproduction ","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066950,"question":"The adults of Echinodermata exhibit ......................symetry.","choices":[{"text":"Radial","value":"A"},{"text":"Bilalteral","value":"B"},{"text":"Spherical","value":"C"},{"text":"Botha a and b","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066949,"question":"the madreportie in echinoderms is the part of ........................system.","choices":[{"text":"Excretory","value":"A"},{"text":"Water vascular system","value":"B"},{"text":"Nervous","value":"C"},{"text":"Reproductive","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066948,"question":"Which of the following is not a characteristics feature of echinoderms.","choices":[{"text":"Deuterostome developement","value":"A"},{"text":"Open circulatory system","value":"B"},{"text":"Tube feet","value":"C"},{"text":"Calcareous endoskeleton","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066947,"question":"Which of the followign echinoderm is known for its ability to regenerte its lost cut arms.","choices":[{"text":"Brittle star","value":"A"},{"text":"Sea cucumber","value":"B"},{"text":"Cake urchin","value":"C"},{"text":"Sea urchin","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":1066946,"question":"Radula or resping tongue in molluses is primarily used for","choices":[{"text":"Feeding","value":"A"},{"text":"Locomotion ","value":"B"},{"text":"Filtering","value":"C"},{"text":"Excretion ","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":1066945,"question":"Excretion in molluses is carried out by","choices":[{"text":"Malpighian tubules","value":"A"},{"text":"Protonephridia","value":"B"},{"text":"Nephridia","value":"C"},{"text":"Flame cells","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":1066944,"question":"Squids and octopuses belong to which class of mollucs","choices":[{"text":"Cephalopoda","value":"A"},{"text":"Gastropoda","value":"B"},{"text":"Brivalvia","value":"C"},{"text":"Polychaetaea","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":1066943,"question":"The mantle in molluses secrrete the following structure.","choices":[{"text":"Gills","value":"A"},{"text":"Foot","value":"B"},{"text":"Shell","value":"C"},{"text":"Radula","value":"D"},{"value":"E"}],"correctAnswer":3}]