Q. No.The triangular head of cockroach is made by fusion of how many segments :
(1) Three
(2) Five
(3) Nine
(4) Six
Which among the following statements with respect to forewings of cockroach is incorrect?
(1) They are called as tegmina.
(2) They are opaque, leathery and dark.
(3) They arise from prothorax.
(4) They cover hindwings when at rest.
Which among the following statements are incorrect about cockroach?
(1) Haemocytes lack respiratory pigment.
(2) Has 13 chambered heart on the ventral side of the body.
(3) Blood from sinuses enter heart through ostia.
(4) Has 10 pairs of spiracles present on lateral side of body.
Which among the following are incorrect with respect to connective tissue ?
(1) Tendon is dense regular connective tissue.
(2) Bones are rich in collagen fibres.
(3) The intercellular material of cartilage is solid and pliable matrix that resists compression.
(4) Platelets and RBCs are devoid of nucleus.
Which among the following is not a sense organ of cockroach ?
(1) Labial palps
(2) Maxillary palps
(3) Caudal style
(4) Anal cerci
The complex animals mainly consist of how many types of tissues?
(1) Four
(2) Three
(3) Two
(4) Give
Which of the following is not suitable for hypopharynx?
(1) A median lobe
(2) Flexible
(3) Acting a tongue
(4) Formed by one of the segments of head
The head is connected with thorax-
(1) By a long extension of prothorax
(2) By a short extension of prothorax
(3) By a short extension of neck
(4) By a long extension of neck
Tegmina are……… while hind wings are…………
(1) Opaque dark and leathery; transparent and membranous
(2) Transparent and membranous; Opaque and dark leathery
(3) Translucent dark and membranous; transparent and leathery
(4) Opaque and membranous; transparent and leathery
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