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Earn 100
The cells of fat body of cockroach which contain symbiotic bacteria are:
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Important Questions on Structural Organization in Animals
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Identify the correct sequence of flow of circulation of blood in Periplaneta americana
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Thermoreceptor sensillae of cockroach are present on
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Cockroach has 'superposition vision'. This type of vision has the following characteristic features 'EXCEPT'
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In cockroach, if the sub-oesophageal ganglion is damaged, which part of the cockroach is affected?
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IMPORTANT
Identify the correct statement with reference to the nervous system of the cockroach:
a) The nervous system of cockroach is called as autonomic nervous system.
b) There are thoracic and abdominal ganglion.
c) Sub-oesophageal ganglion controls the movements of mouth parts.
d) The abdominal ganglion innervates the abdominal segment.
The correct answer is
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Which of the following abdominal segment of cockroach is without a nerve ganglion?
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Stomodeal valve is formed from:
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IMPORTANT
Study the following and pick up the correct statements.
I) Contraction of dorsoventral muscles depress the wings in cockroaches.
II) Stomodeal valve lies between the gizzard and mesenteron in the cockroach.
III) In cockroaches, the spiracles are holopneustic type.
IV) Opening and closing of spiracles is influenced by tension in haemolymph and tension in the tracheae
