Which one of the following statements are correct?
(i) Mesothoracic wing in cockroach is also called tegmina.
(ii) Male cockroach bear a pair of long, thread like anal styles, which are absent in female.
(iii) In both sexes in cockroach, the 9 th segment bears a pair of jointed filamentous structures called anal cerci.
(iv) In cockroach crop is present at junction of midgut and hindgut which help in removal of excretory products from haemolymph.
(v) A ring of 6-8 blind tubules called hepatic caecae is present at junction of foregut and midgut in cockroach.
(vi) In cockroach malphigian tubules is present at junction of midgut and hingut which help in removal of excretory products from haemolymph.
(vii) Blood from sinuses enter heart through ostia and is pumped posteriorly to sinuses again is cockroach.
(viii) The respiratory system consists of a network of trachea, that open through 10 pair of small holes called spiracles.
(ix) Cockroach converts nitrogenous waste product into uric acid and hence is called uricotelic organism.
(x) In cockroach, 3 ganglia lie in the thorax, and 6 in the abdomen.
(xi) Both eye in cockroach consists of about 2000 hexagonal ommatidia and gives mosaic vision.
(xii) The chitinous symmetrical structure surrounding the gonopore is called phallomere/gonapophysis in cockroach.
(xiii) In male cockroach, mushroom gland act as reproductive gland.
(xiv) In female cockroach, each ovary is formed of a group of eight ovarioles. (xv) The un-fertilized eggs are encased in sapsules called oothecae in cockroach.
Choose the correct option given below:
Text Solution
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