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Standard XII
Biology
Alimentary Canal of Cockroach
Question
In cockroach the flow of haemolymph is
Heart -> head haemocoel --> perivisceral sinus -->pericardial sinus -->ostia
-->heart
Heart -->pericardial sinus--> head haemocoel --> perivisceral sinus--> ostia -->heart
Heart -->head haemocoel -> previsceral sinus -->ostia -->pericardial sinus -->heart
Heart -->ostia -> perivisceral sinus -->pericardial sinus -> head haemocoel
-->heart
A
Heart -->ostia -> perivisceral sinus -->pericardial sinus -> head haemocoel
-->heart
B
Heart -->pericardial sinus--> head haemocoel --> perivisceral sinus--> ostia -->heart
C
Heart -> head haemocoel --> perivisceral sinus -->pericardial sinus -->ostia
-->heart
D
Heart -->head haemocoel -> previsceral sinus -->ostia -->pericardial sinus -->heart
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Solution
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-->heart
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